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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2023
Apr. 19, 2024
Jun. 30, 2023
Document Information [Line Items]      
Entity, Registrant Name PAM TRANSPORTATION SERVICES INC    
Current Fiscal Year End Date --12-31    
Document, Fiscal Period Focus FY    
Document, Fiscal Year Focus 2023    
Document, Type 10-K/A    
Document, Annual Report true    
Document, Period End Date Dec. 31, 2023    
Document, Transition Report false    
Entity, Incorporation, State or Country Code DE    
Entity, File Number 0-1507    
Entity, Tax Identification Number 71-0633135    
Entity, Address, Address Line One 297 West Henri De Tonti Blvd    
Entity, Address, City or Town Tontitown    
Entity, Address, State or Province AR    
Entity, Address, Postal Zip Code 72770    
City Area Code 479    
Local Phone Number 361-9111    
Title of 12(b) Security Common Stock, $.01 par value    
Trading Symbol PTSI    
Security Exchange Name NASDAQ    
Entity, Well-known Seasoned Issuer No    
Entity, Voluntary Filers No    
Entity, Current Reporting Status Yes    
Entity, Interactive Data, Current Yes    
Entity, Filer Category Accelerated Filer    
Entity, Small Business true    
Entity, Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document, Financial Statement Error Correction Flag false    
Entity, Shell Company false    
Entity, Public Float     $ 160,431,964
Entity, Common Stock Shares, Outstanding   22,034,762  
Auditor Name Grant Thornton LLP    
Auditor Firm ID 248    
Auditor Location Tulsa, OK    
Amendment Description P.A.M. Transportation Services, Inc. (“P.A.M.,” the “Company,” “we,” “our,” or “us”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment”) to amend the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, originally filed with the Securities and Exchange Commission (the “SEC”) on March 13, 2024 (the “Original Report”), to include the information required by Items 10 through 14 of Part III of Form 10-K. This information was previously omitted from the Original Report in reliance on General Instruction G(3) to Form 10-K, which permits the information in the above referenced items to be incorporated in the Form 10-K by reference from the Company’s definitive proxy statement if such statement is filed no later than 120 days after the Company’s fiscal year-end. We are filing this Amendment to provide the information required in Part III of Form 10-K because a definitive proxy statement containing such information will not be filed by the Company within 120 days after the end of the fiscal year covered by the Original Report.   This Amendment amends and restates in their entirety Items 10, 11, 12, 13, and 14 of Part III of the Original Report. The cover page of the Original Report is also amended to delete the reference to the incorporation by reference of the Company’s definitive proxy statement. In addition, Item 15(a)(3) of Part IV of the Original Report has also been amended and supplemented to include our Certificate of Amendment of our Amended and Restated Certificate of Incorporation, filed with the Secretary of State of the State of Delaware on May 10, 2022, which was inadvertently omitted from the exhibit index in the Original Report, and our 2024 Equity Incentive Plan.   Except as described above, no other changes have been made to the Original Report, and this Amendment does not modify, amend or update in any way any of the financial or other information contained in the Original Report. This Amendment does not reflect events occurring after the date of the filing of the Original Report. Accordingly, this Amendment should be read in conjunction with the Original Report and with our filings with the SEC subsequent to the filing of the Original Report. Capitalized terms used in this Amendment and not otherwise defined herein have the meaning ascribed to such terms in the Original Report.   Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), this Amendment also contains new certifications pursuant to Sections 302 of the Sarbanes-Oxley Act of 2002, which are attached hereto. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K under the Exchange Act, paragraphs 3, 4 and 5 of the certifications have been omitted.    
Amendment Flag true    
Entity, Central Index Key 0000798287