Note 14 - Treasury Stock (Details Textual) - USD ($) $ in Millions	Jul. 31, 2022	Oct. 04, 2021
Stock Repurchase Program, Authorized Amount		$ 3
Stock Repurchase Program, Authorized Repurchase Amount Used	$ 2

Amount used of the stock repurchase plan authorized.

No definition available.

Name:	ppih_StockRepurchaseProgramAuthorizedRepurchaseAmountUsed
Namespace Prefix:	ppih_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant