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Income Taxes (Details 3) (USD $)	12 Months Ended
	Jun. 30, 2012
Full valuation allowance against deferred tax assets
Beginning Balance	$ (2,362,000)
Increase in tax asset valuation allowance	(227,000)
Ending Balance	$ (2,589,000)

X

- Definition

Deferred tax assets.

+ References

No definition available.

+ Details

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

X

- Definition

Net increase decrease in net deferred tax assets.

+ References

No definition available.

+ Details

Name:	pdex_NetIncreaseDecreaseInNetDeferredTaxAssets
Namespace Prefix:	pdex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_DeferredTaxAssetsNetClassificationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration