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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details Textuals) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended 6 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2014
Jun. 30, 2014
Marketable security cost         $ 857pdex_MarketableSecuritiesEquityCost 857pdex_MarketableSecuritiesEquityCost
Marketable security unrealized, gain         209us-gaap_UnrealizedGainOnSecurities  
Marketable security unrealized, loss         7us-gaap_UnrealizedLossOnSecurities  
Marketable security realized, gain 395us-gaap_MarketableSecuritiesRealizedGainLoss 27us-gaap_MarketableSecuritiesRealizedGainLoss 455us-gaap_MarketableSecuritiesRealizedGainLoss 27us-gaap_MarketableSecuritiesRealizedGainLoss    
Investments           $ 1,058us-gaap_MarketableSecuritiesNoncurrent 1,058us-gaap_MarketableSecuritiesNoncurrent
Customer list and backlog            
Intangible assets, Useful life           10 years