Unaudited Interim Condensed Financial Information of the Parent Company (Details)	Jun. 30, 2026
Unaudited Interim Condensed Financial Information of the Parent Company [Abstract]
Consolidated net assets, percentage	25.00%

Restricted net assets for consolidated and unconsolidated subsidiaries, percentage.

No definition available.

Name:	pthl_RestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiariesPercentage
Namespace Prefix:	pthl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant