| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.19.1 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 91 </ContextCount> |
| <ElementCount> 216 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> false </FootnotesReported> |
| <SegmentCount> 33 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 5 </UnitCount> |
| <MyReports> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 1001 - Document - Document and Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/DocumentAndEntityInformation </Role> |
| | | <ShortName> Document and Entity Information </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 1002 - Statement - Unaudited Condensed Consolidated Balance Sheets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/UnauditedCondensedConsolidatedBalanceSheets </Role> |
| | | <ShortName> Unaudited Condensed Consolidated Balance Sheets </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 1003 - Statement - Unaudited Condensed Consolidated Balance Sheets [Parenthetical] </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/UnauditedCondensedConsolidatedBalanceSheetsParenthetical </Role> |
| | | <ShortName> Unaudited Condensed Consolidated Balance Sheets [Parenthetical] </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 1004 - Statement - Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/UnauditedCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss </Role> |
| | | <ShortName> Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 1005 - Statement - Unaudited Condensed Consolidated Statements of Stockholders' Equity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/UnauditedCondensedConsolidatedStatementsOfStockholdersEquity </Role> |
| | | <ShortName> Unaudited Condensed Consolidated Statements of Stockholders' Equity </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 1006 - Statement - Condensed Consolidated Statements of Cash Flows </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/CondensedConsolidatedStatementsOfCashFlows </Role> |
| | | <ShortName> Condensed Consolidated Statements of Cash Flows </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 1007 - Disclosure - Basis of Presentation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/BasisOfPresentation </Role> |
| | | <ShortName> Basis of Presentation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 1008 - Disclosure - New Accounting Pronouncements </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/NewAccountingPronouncements </Role> |
| | | <ShortName> New Accounting Pronouncements </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 1009 - Disclosure - Investment in Equity Securities </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/InvestmentInEquitySecurities </Role> |
| | | <ShortName> Investment in Equity Securities </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 1010 - Disclosure - Inventories </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/Inventories </Role> |
| | | <ShortName> Inventories </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 1011 - Disclosure - Leases </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/Leases </Role> |
| | | <ShortName> Leases </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 1012 - Disclosure - Intangible Assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IntangibleAssets </Role> |
| | | <ShortName> Intangible Assets </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 1013 - Disclosure - Redeemable Noncontrolling Interest </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RedeemableNoncontrollingInterest </Role> |
| | | <ShortName> Redeemable Noncontrolling Interest </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 1014 - Disclosure - Stockholders' Equity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockholdersEquity </Role> |
| | | <ShortName> Stockholders' Equity </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 1015 - Disclosure - Net Loss Per Share </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/NetLossPerShare </Role> |
| | | <ShortName> Net Loss Per Share </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 1016 - Disclosure - Stock-Based Compensation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensation </Role> |
| | | <ShortName> Stock-Based Compensation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 1017 - Disclosure - Income Taxes </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IncomeTaxes </Role> |
| | | <ShortName> Income Taxes </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 1018 - Disclosure - Fair Value Measurements </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/FairValueMeasurements </Role> |
| | | <ShortName> Fair Value Measurements </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 1019 - Disclosure - Related Party Transactions </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RelatedPartyTransactions </Role> |
| | | <ShortName> Related Party Transactions </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 1020 - Disclosure - License Arrangements </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LicenseArrangements </Role> |
| | | <ShortName> License Arrangements </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 1021 - Disclosure - Commitments </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/Commitments </Role> |
| | | <ShortName> Commitments </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 1022 - Disclosure - Subsequent Event </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/SubsequentEvent </Role> |
| | | <ShortName> Subsequent Event </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 1023 - Disclosure - New Accounting Pronouncements (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/NewAccountingPronouncementsPolicies </Role> |
| | | <ShortName> New Accounting Pronouncements (Policies) </ShortName> |
| | | <MenuCategory> Policies </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/NewAccountingPronouncements </ParentRole> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 1024 - Disclosure - Investment in Equity Securities (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/InvestmentInEquitySecuritiesTables </Role> |
| | | <ShortName> Investment in Equity Securities (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/InvestmentInEquitySecurities </ParentRole> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 1025 - Disclosure - Leases (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesTables </Role> |
| | | <ShortName> Leases (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/Leases </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 1026 - Disclosure - Intangible Assets (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IntangibleAssetsTables </Role> |
| | | <ShortName> Intangible Assets (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/IntangibleAssets </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 1027 - Disclosure - Redeemable Noncontrolling Interest (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RedeemableNoncontrollingInterestTables </Role> |
| | | <ShortName> Redeemable Noncontrolling Interest (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/RedeemableNoncontrollingInterest </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 1028 - Disclosure - Stockholders' Equity (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockholdersEquityTables </Role> |
| | | <ShortName> Stockholders' Equity (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockholdersEquity </ParentRole> |
| | | <Position> 28 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 1029 - Disclosure - Stock-Based Compensation (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensationTables </Role> |
| | | <ShortName> Stock-Based Compensation (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockBasedCompensation </ParentRole> |
| | | <Position> 29 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 1030 - Disclosure - Fair Value Measurements (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/FairValueMeasurementsTables </Role> |
| | | <ShortName> Fair Value Measurements (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/FairValueMeasurements </ParentRole> |
| | | <Position> 30 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 1031 - Disclosure - Basis of Presentation (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/BasisOfPresentationDetailsTextual </Role> |
| | | <ShortName> Basis of Presentation (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/BasisOfPresentation </ParentRole> |
| | | <Position> 31 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 1032 - Disclosure - New Accounting Pronouncements (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/NewAccountingPronouncementsDetailsTextual </Role> |
| | | <ShortName> New Accounting Pronouncements (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/NewAccountingPronouncementsPolicies </ParentRole> |
| | | <Position> 32 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 1033 - Disclosure - Investment in Equity Securities (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/InvestmentInEquitySecuritiesDetails </Role> |
| | | <ShortName> Investment in Equity Securities (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/InvestmentInEquitySecuritiesTables </ParentRole> |
| | | <Position> 33 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 1034 - Disclosure - Investment in Equity Securities (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/InvestmentInEquitySecuritiesDetailsTextual </Role> |
| | | <ShortName> Investment in Equity Securities (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/InvestmentInEquitySecuritiesTables </ParentRole> |
| | | <Position> 34 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 1035 - Disclosure - Inventories (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/InventoriesDetailsTextual </Role> |
| | | <ShortName> Inventories (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/Inventories </ParentRole> |
| | | <Position> 35 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 1036 - Disclosure - Leases (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesDetails </Role> |
| | | <ShortName> Leases (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/LeasesTables </ParentRole> |
| | | <Position> 36 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 1037 - Disclosure - Leases (Details 1) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesDetails1 </Role> |
| | | <ShortName> Leases (Details 1) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/LeasesTables </ParentRole> |
| | | <Position> 37 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 1038 - Disclosure - Leases (Details 2) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesDetails2 </Role> |
| | | <ShortName> Leases (Details 2) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/LeasesTables </ParentRole> |
| | | <Position> 38 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 1039 - Disclosure - Leases (Details 3) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesDetails3 </Role> |
| | | <ShortName> Leases (Details 3) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/LeasesTables </ParentRole> |
| | | <Position> 39 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 1040 - Disclosure - Leases (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/LeasesDetailsTextual </Role> |
| | | <ShortName> Leases (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/LeasesTables </ParentRole> |
| | | <Position> 40 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 1041 - Disclosure - Intangible Assets (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IntangibleAssetsDetails </Role> |
| | | <ShortName> Intangible Assets (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/IntangibleAssetsTables </ParentRole> |
| | | <Position> 41 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 1042 - Disclosure - Intangible Assets (Details 1) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IntangibleAssetsDetails1 </Role> |
| | | <ShortName> Intangible Assets (Details 1) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/IntangibleAssetsTables </ParentRole> |
| | | <Position> 42 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 1043 - Disclosure - Intangible Assets (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IntangibleAssetsDetailsTextual </Role> |
| | | <ShortName> Intangible Assets (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/IntangibleAssetsTables </ParentRole> |
| | | <Position> 43 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 1044 - Disclosure - Redeemable Noncontrolling Interest (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RedeemableNoncontrollingInterestDetails </Role> |
| | | <ShortName> Redeemable Noncontrolling Interest (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/RedeemableNoncontrollingInterestTables </ParentRole> |
| | | <Position> 44 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 1045 - Disclosure - Redeemable Noncontrolling Interest (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RedeemableNoncontrollingInterestDetailsTextual </Role> |
| | | <ShortName> Redeemable Noncontrolling Interest (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/RedeemableNoncontrollingInterestTables </ParentRole> |
| | | <Position> 45 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 1046 - Disclosure - Stockholders' Equity (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockholdersEquityDetails </Role> |
| | | <ShortName> Stockholders' Equity (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockholdersEquityTables </ParentRole> |
| | | <Position> 46 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 1047 - Disclosure - Net Loss Per Share (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/NetLossPerShareDetailsTextual </Role> |
| | | <ShortName> Net Loss Per Share (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/NetLossPerShare </ParentRole> |
| | | <Position> 47 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 1048 - Disclosure - Stock-Based Compensation (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensationDetails </Role> |
| | | <ShortName> Stock-Based Compensation (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockBasedCompensationTables </ParentRole> |
| | | <Position> 48 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 1049 - Disclosure - Stock-Based Compensation (Details 1) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensationDetails1 </Role> |
| | | <ShortName> Stock-Based Compensation (Details 1) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockBasedCompensationTables </ParentRole> |
| | | <Position> 49 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 1050 - Disclosure - Stock-Based Compensation (Details 2) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensationDetails2 </Role> |
| | | <ShortName> Stock-Based Compensation (Details 2) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockBasedCompensationTables </ParentRole> |
| | | <Position> 50 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 1051 - Disclosure - Stock-Based Compensation (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/StockBasedCompensationDetailsTextual </Role> |
| | | <ShortName> Stock-Based Compensation (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/StockBasedCompensationTables </ParentRole> |
| | | <Position> 51 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 1052 - Disclosure - Income Taxes (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/IncomeTaxesDetailsTextual </Role> |
| | | <ShortName> Income Taxes (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/IncomeTaxes </ParentRole> |
| | | <Position> 52 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 1053 - Disclosure - Fair Value Measurements (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/FairValueMeasurementsDetails </Role> |
| | | <ShortName> Fair Value Measurements (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/FairValueMeasurementsTables </ParentRole> |
| | | <Position> 53 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 1054 - Disclosure - Fair Value Measurements (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/FairValueMeasurementsDetailsTextual </Role> |
| | | <ShortName> Fair Value Measurements (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/FairValueMeasurementsTables </ParentRole> |
| | | <Position> 54 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 1055 - Disclosure - Related Party Transactions (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/RelatedPartyTransactionsDetailsTextual </Role> |
| | | <ShortName> Related Party Transactions (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/RelatedPartyTransactions </ParentRole> |
| | | <Position> 55 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 1056 - Disclosure - Commitments (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/CommitmentsDetailsTextual </Role> |
| | | <ShortName> Commitments (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/Commitments </ParentRole> |
| | | <Position> 56 </Position> |
| | | </Report> |
| | <Report instance="casi-20190331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 1057 - Disclosure - Subsequent Event (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.entremed.com/role/SubsequentEventDetailsTextual </Role> |
| | | <ShortName> Subsequent Event (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.entremed.com/role/SubsequentEvent </ParentRole> |
| | | <Position> 57 </Position> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <InputFiles> |
| | <File> casi-20190331.xml </File> |
| | <File> casi-20190331.xsd </File> |
| | <File> casi-20190331_cal.xml </File> |
| | <File> casi-20190331_def.xml </File> |
| | <File> casi-20190331_lab.xml </File> |
| | <File> casi-20190331_pre.xml </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy> http://xbrl.sec.gov/dei/2018-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/srt/2018-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/us-gaap/2018-01-31 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |