COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details 5) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized gain on marketable equity securities	$ 5,000

Accumulated appreciation or loss, net of tax, in value of the total of marketable securities at the end of an accounting period.

No definition available.

Name:	pdex_AccumulatedOtherComprehensiveIncomeLossMarketableSecuritiesAdjustmentNetOfTax
Namespace Prefix:	pdex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant