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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 032 - Disclosure - Note E - Stock-based Compensation (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 037 - Disclosure - Note H - Earnings Per Share - Computations of Basic and Diluted Earnings Per Share (Details) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 038 - Disclosure - Note I - Income Taxes (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 039 - Disclosure - Note J - Fair Value of Financial Instruments - Securities Measured at Fair Value on a Recurring Basis (Details) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 040 - Disclosure - Note J - Fair Value of Financial Instruments - Fair Value of Long-term Debt Other Than Lines of Credit (Details) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 041 - Disclosure - Note L - Litigation (Details Textual) </link:definition> |
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| <link:usedOn> link:definitionLink </link:usedOn> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 042 - Disclosure - Note M - Leases (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 043 - Disclosure - Note M - Leases - Operating Lease (Details) </link:definition> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 044 - Disclosure - Note M - Leases - Lease Cost (Details) </link:definition> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 045 - Disclosure - Note M - Leases - Lease Revenue (Details) </link:definition> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 046 - Disclosure - Note M - Leases - Lease Receivables (Details) </link:definition> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="statement-note-n-noncash-investing-and-financing-activities-details-textual" roleURI="http://pamtransport.com/20230630/role/statement-note-n-noncash-investing-and-financing-activities-details-textual"> |
| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 047 - Disclosure - Note N - Noncash Investing and Financing Activities (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 048 - Disclosure - Note O - Acquisition of Metropolitan Trucking (Details Textual) </link:definition> |
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| <link:definition xmlns="http://www.xbrl.org/2003/linkbase"> 049 - Disclosure - Note O - Acquisition of Metropolitan Trucking - Assets Acquired and Liabilities Assumed (Details) </link:definition> |
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| <xsd:element id="ptsi_PaymentsProceedsFromPurchasesOfMarketableEquitySecuritiesNetOfReturnOfCapital" name="PaymentsProceedsFromPurchasesOfMarketableEquitySecuritiesNetOfReturnOfCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
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| <xsd:element abstract="true" id="ptsi_StockAwardMember" name="StockAwardMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/> |
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