| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.20.1 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 81 </ContextCount> |
| <ElementCount> 249 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> false </FootnotesReported> |
| <SegmentCount> 26 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 7 </UnitCount> |
| <MyReports> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 000100 - Document - Document and Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/DocumentAndEntityInformation </Role> |
| | | <ShortName> Document and Entity Information </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 010000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CondensedConsolidatedBalanceSheetsUnaudited </Role> |
| | | <ShortName> CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 010100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical </Role> |
| | | <ShortName> CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 020000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CondensedConsolidatedStatementsOfOperationsUnaudited </Role> |
| | | <ShortName> CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 030000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited </Role> |
| | | <ShortName> CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 060100 - Disclosure - Basis of Preparation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BasisOfPreparation </Role> |
| | | <ShortName> Basis of Preparation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 060200 - Disclosure - Gamma Knife at NYU Medical Center </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/GammaKnifeAtNyuMedicalCenter </Role> |
| | | <ShortName> Gamma Knife at NYU Medical Center </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 060300 - Disclosure - The Southern California Regional Gamma Knife Center </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/SouthernCaliforniaRegionalGammaKnifeCenter </Role> |
| | | <ShortName> The Southern California Regional Gamma Knife Center </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 060400 - Disclosure - Florida Oncology Partners </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/FloridaOncologyPartners </Role> |
| | | <ShortName> Florida Oncology Partners </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 060500 - Disclosure - Boca Oncology Partners </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BocaOncologyPartners </Role> |
| | | <ShortName> Boca Oncology Partners </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 060600 - Disclosure - Medical Oncology Partners </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/MedicalOncologyPartners </Role> |
| | | <ShortName> Medical Oncology Partners </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 060700 - Disclosure - CB Oncology Partners </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CbOncologyPartners </Role> |
| | | <ShortName> CB Oncology Partners </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 060800 - Disclosure - Income Taxes </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/IncomeTaxes </Role> |
| | | <ShortName> Income Taxes </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 080100 - Disclosure - Basis of Preparation (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BasisOfPreparationTables </Role> |
| | | <ShortName> Basis of Preparation (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/BasisOfPreparation </ParentRole> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 080300 - Disclosure - The Southern California Regional Gamma Knife Center (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/SouthernCaliforniaRegionalGammaKnifeCenterTables </Role> |
| | | <ShortName> The Southern California Regional Gamma Knife Center (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/SouthernCaliforniaRegionalGammaKnifeCenter </ParentRole> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 080400 - Disclosure - Florida Oncology Partners (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/FloridaOncologyPartnersTables </Role> |
| | | <ShortName> Florida Oncology Partners (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/FloridaOncologyPartners </ParentRole> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 080500 - Disclosure - Boca Oncology Partners (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BocaOncologyPartnersTables </Role> |
| | | <ShortName> Boca Oncology Partners (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/BocaOncologyPartners </ParentRole> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 080600 - Disclosure - Medical Oncology Partners (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/MedicalOncologyPartnersTables </Role> |
| | | <ShortName> Medical Oncology Partners (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/MedicalOncologyPartners </ParentRole> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 080700 - Disclosure - CB Oncology Partners (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CbOncologyPartnersTables </Role> |
| | | <ShortName> CB Oncology Partners (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/CbOncologyPartners </ParentRole> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 090100 - Disclosure - Basis of Preparation (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BasisOfPreparationDetails </Role> |
| | | <ShortName> Basis of Preparation (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/BasisOfPreparationTables </ParentRole> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 090200 - Disclosure - Gamma Knife at NYU Medical Center (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/GammaKnifeAtNyuMedicalCenterDetails </Role> |
| | | <ShortName> Gamma Knife at NYU Medical Center (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/GammaKnifeAtNyuMedicalCenter </ParentRole> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 090300 - Disclosure - The Southern California Regional Gamma Knife Center (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/SouthernCaliforniaRegionalGammaKnifeCenterDetails </Role> |
| | | <ShortName> The Southern California Regional Gamma Knife Center (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/SouthernCaliforniaRegionalGammaKnifeCenterTables </ParentRole> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 090400 - Disclosure - Florida Oncology Partners (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/FloridaOncologyPartnersDetails </Role> |
| | | <ShortName> Florida Oncology Partners (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/FloridaOncologyPartnersTables </ParentRole> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 090500 - Disclosure - Boca Oncology Partners (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/BocaOncologyPartnersDetails </Role> |
| | | <ShortName> Boca Oncology Partners (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/BocaOncologyPartnersTables </ParentRole> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 090600 - Disclosure - Medical Oncology Partners (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/MedicalOncologyPartnersDetails </Role> |
| | | <ShortName> Medical Oncology Partners (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/MedicalOncologyPartnersTables </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 090700 - Disclosure - CB Oncology Partners (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/CbOncologyPartnersDetails </Role> |
| | | <ShortName> CB Oncology Partners (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/CbOncologyPartnersTables </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="usnu-20200331.xml"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 090800 - Disclosure - Income Taxes (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://usneuro.com/role/IncomeTaxesDetails </Role> |
| | | <ShortName> Income Taxes (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://usneuro.com/role/IncomeTaxes </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <InputFiles> |
| | <File> usnu-20200331.xml </File> |
| | <File> usnu-20200331.xsd </File> |
| | <File> usnu-20200331_cal.xml </File> |
| | <File> usnu-20200331_def.xml </File> |
| | <File> usnu-20200331_lab.xml </File> |
| | <File> usnu-20200331_pre.xml </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy> http://fasb.org/srt/2019-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://xbrl.sec.gov/dei/2019-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/us-gaap/2019-01-31 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |