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Note 6 - Claims Liabilities (Details Textual) - USD ($) | Dec. 31, 2023 | Sep. 01, 2020 | Aug. 31, 2020
--- | --- | --- | ---
Self Insurance Auto Liability Claims Threshold Amount |  | $ 2,000,000 |
Workers Compensation Self Insured Retention | $ 500,000 |  |
Workers Compensation Per Occurrence Excess Policy | 500,000 |  |
Stop Loss for Self Insurance for Employee Health Claims Per Covered Employee Per Year | 400,000 |  |
Cargo Loss Coverage [Member] |  |  |
Per Occurrence Deductibles | 10,000 |  |
Auto Liability Coverage [Member] |  |  |
Self Insurance Auto Liability Claims Threshold Amount | $ 2,000,000 |  | $ 1,000,000

X
- Definition The amount of insurance deductibles on a per occurrence basis. + References No definition available. + Details
Name: | ptsi_PerOccurrenceDeductibles
Namespace Prefix: | ptsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents self insurance auto liability claims threshold amount. + References No definition available. + Details
Name: | ptsi_SelfInsuranceAutoLiabilityClaimsThresholdAmount
Namespace Prefix: | ptsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Stop loss for self insurance for employee health claims. A stop loss is a policy that pays above a certain amount to 'stop' any more loss to the company. Similar to a large deductible policy. + References No definition available. + Details
Name: | ptsi_StopLossForSelfInsuranceForEmployeeHealthClaimsPerCoveredEmployeePerYear
Namespace Prefix: | ptsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition An insurance policy which covers workers' compensation for occurrence excess. + References No definition available. + Details
Name: | ptsi_WorkersCompensationPerOccurrenceExcessPolicy
Namespace Prefix: | ptsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of self-insurance retention for workers' compensation claims. + References No definition available. + Details
Name: | ptsi_WorkersCompensationSelfInsuredRetention
Namespace Prefix: | ptsi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis=ptsi_CargoLossCoverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis=ptsi_AutoLiabilityCoverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |