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NOTES RECEIVABLE & VARIABLE INTEREST ENTITY CONSIDERATIONS (Details Textuals) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Jun. 30, 2014
Nov. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Notes receivable net $ 1,236us-gaap_NotesAndLoansReceivableNetCurrent   $ 1,236us-gaap_NotesAndLoansReceivableNetCurrent         
Revenue 3,922us-gaap_SalesRevenueNet 2,404us-gaap_SalesRevenueNet 9,310us-gaap_SalesRevenueNet 7,599us-gaap_SalesRevenueNet      
Two promissory notes (Loan Purchase and Sale Agreement)              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Notes receivable net             1,200us-gaap_NotesAndLoansReceivableNetCurrent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_NotesReceivableMember
Description of cross collateral notes    

The promissory notes are cross-collateralized and secured by (collectively, the “Collateral”), among other things, real property consisting of 2.3 acres of land and an approximate 30,000 square foot industrial building and a security interest in substantially all of the assets of Riverside Manufacturing, Inc. (“Riverside”) (consisting primarily of machine shop equipment and accounts receivable).

       
Riverside Manufacturing, Inc              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Notes receivable net 1,236us-gaap_NotesAndLoansReceivableNetCurrent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
  1,236us-gaap_NotesAndLoansReceivableNetCurrent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
       
Maximum investment at risk 1,405us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
  1,405us-gaap_DebtInstrumentCollateralAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
       
Revenue         1,900us-gaap_SalesRevenueNet
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
   
Riverside Manufacturing, Inc | Revolving Credit Facility              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Revolving loan agreement aggregate amount 200,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
  200,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
       
Revolving loan agreement advanced amount 96,270us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
  96,270us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
       
Revolving loan agreement repaid amount $ 65,686us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= pdex_NotesReceivable1Member
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember