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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details Textuals) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Jun. 30, 2014 | Jun. 30, 2014
Marketable security cost | $ 609 pdex_MarketableSecuritiesEquityCost |  | $ 609 pdex_MarketableSecuritiesEquityCost |  | $ 857 pdex_MarketableSecuritiesEquityCost | 857 pdex_MarketableSecuritiesEquityCost
Marketable security unrealized, gain |  |  | 393 us-gaap_UnrealizedGainOnSecurities |  | 209 us-gaap_UnrealizedGainOnSecurities |
Marketable security unrealized, loss |  |  | 0 us-gaap_UnrealizedLossOnSecurities |  | 7 us-gaap_UnrealizedLossOnSecurities |
Marketable security realized, gain | $ 59 us-gaap_MarketableSecuritiesRealizedGainLoss |  | $ 59 us-gaap_MarketableSecuritiesRealizedGainLoss |  |  |
Covenant not to compete |  |  |  |  |  |
Intangible assets, Useful life |  |  |  |  |  | 5 years
Customer list |  |  |  |  |  |
Intangible assets, Useful life |  |  |  |  |  | 10 years

X
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X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + 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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