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BASIS OF PRESENTATION (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Scenario, Previously Reported [Member]
Deferred rent, current portion		$ 79
Accrued Liabilities [Member]
Deferred rent, current portion	$ 79

X

- Definition

For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date.

+ References

No definition available.

+ Details

Name:	pdex_DeferredRentCreditNoncurrent1
Namespace Prefix:	pdex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioPreviouslyReportedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_AccruedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: