INCOME TAXES (Narrative) (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Income Tax Disclosure [Abstract]
Accelerated tax depreciation expense	$ 92

Accelerated tax depreciation expense as a result of the technical amendments made by the CARES Act to QIP.

No definition available.

Name:	pdex_AcceleratedTaxDepreciationExpenses
Namespace Prefix:	pdex_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant