Recent Accounting Pronouncements and Significant Accounting Policies, Principles of Consolidation (Details)	12 Months Ended
Dec. 31, 2023 Contract Subsidiary
Principles of Consolidation [Abstract]
Number of newly established subsidiaries \| Subsidiary	3
Number of shipbuilding contracts signed \| Contract	3

Number of shipbuilding contracts entered into during the period with China Shipbuilding Trading Company Limited and Shanghai Waigaoqiao Shipbuilding Company Limited for the construction of three product/crude oil tankers.

No definition available.

Name:	pshg_NumberOfShipbuildingContracts
Namespace Prefix:	pshg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration