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Composition of Certain Financial Statement Items (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Marketable security investments |  | $ 1,058
Marketable security cost |  | 857
Marketable security unrealized, gain |  | 209
Marketable security unrealized, loss |  | 7
Realized gains on sale of investments | $ 455 | 65
Depreciation expense (Includes capital lease amortization) | $ 578 | $ 527

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- Definition Cost of investments in equity securities securities that provide ownership interests classified as marketing. + References No definition available. + Details
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Namespace Prefix: | pdex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Investments in equity securities securities that provide ownership interests classified as marketing. + References No definition available. + Details
Name: | pdex_MarketableSecuritiesEquityInvestments
Namespace Prefix: | pdex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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- Definition The increase (decrease), resulting in a gain, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period. + References No definition available. + Details
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- Definition The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period. + References No definition available. + Details
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