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Note L - Litigation (Details Textual) - USD ($)	Oct. 07, 2022	Mar. 31, 2023	Sep. 01, 2020
Self Insurance Auto Liability Claims Threshold Amount			$ 2,000,000.0
Settlement Of Collective And Class Action Lawsuit [Member]
Litigation Settlement, Amount Awarded to Other Party	$ 4,750,000
Minimum [Member]
Self Insurance Liability Claims, Exceeding Amount Reserve Threshold		$ 2,000,000.0

X

- Definition

The minimum amount of expected claims for which claims will be reserved in the reporting period.

+ References

No definition available.

+ Details

Name:	ptsi_SelfInsuranceAutoClaimsExceedingAmountReserveThreshold
Namespace Prefix:	ptsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_LitigationCaseAxis=ptsi_SettlementOfCollectiveAndClassActionLawsuitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: