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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (438)us-gaap_NetIncomeLoss $ (512)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 398us-gaap_DepreciationDepletionAndAmortization 398us-gaap_DepreciationDepletionAndAmortization
Gain on sale of investments (455)us-gaap_MarketableSecuritiesRealizedGainLoss (27)us-gaap_MarketableSecuritiesRealizedGainLoss
Gain on sale of real estate held for sale   (167)pdex_GainOnSaleOfRealEstateHeldForSale
Loss (gain) on retirement of equipment (1)pdex_GainLossOnOfRetirementAssets1 6pdex_GainLossOnOfRetirementAssets1
Share-based compensation 14us-gaap_ShareBasedCompensation 42us-gaap_ShareBasedCompensation
Deferred income tax benefit 5us-gaap_DeferredIncomeTaxExpenseBenefit  
Allowance for doubtful accounts receivable 1us-gaap_ProvisionForDoubtfulAccounts 18us-gaap_ProvisionForDoubtfulAccounts
Changes in operating assets and liabilities:    
Accounts receivable and other current receivables (313)us-gaap_IncreaseDecreaseInAccountsReceivable 189us-gaap_IncreaseDecreaseInAccountsReceivable
Unbilled receivables (324)us-gaap_IncreaseDecreaseInUnbilledReceivables (754)us-gaap_IncreaseDecreaseInUnbilledReceivables
Inventory (839)us-gaap_IncreaseDecreaseInInventories 650us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets (83)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets (46)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable, accrued expenses and deferred rent 1,352pdex_IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesAndDeferredRent (272)pdex_IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesAndDeferredRent
Deferred revenue 298us-gaap_IncreaseDecreaseInDeferredRevenue 136us-gaap_IncreaseDecreaseInDeferredRevenue
Income taxes payable (53)us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable (4)us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable
Net cash used in operating activities (438)us-gaap_NetCashProvidedByUsedInOperatingActivities (343)us-gaap_NetCashProvidedByUsedInOperatingActivities
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchase of investments (12)us-gaap_PaymentsToAcquireInvestments (327)us-gaap_PaymentsToAcquireInvestments
Purchases of equipment and leasehold improvements (242)us-gaap_PaymentsToAcquireProductiveAssets (25)us-gaap_PaymentsToAcquireProductiveAssets
Business acquisitions (865)us-gaap_PaymentsToAcquireBusinessesGross  
Purchase of notes receivable (1,236)us-gaap_PaymentsToAcquireNotesReceivable  
Proceeds from sale of real estate held for sale   900us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment
Proceeds from sale of equipment 1us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 4us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Proceeds from sale of investments 1,324us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity 88us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
Increase in intangibles (50)us-gaap_PaymentsToAcquireIntangibleAssets (53)us-gaap_PaymentsToAcquireIntangibleAssets
Net cash provided by (used in) investing activities (1,080)us-gaap_NetCashProvidedByUsedInInvestingActivities 587us-gaap_NetCashProvidedByUsedInInvestingActivities
CASH FLOWS FROM FINANCING ACTIVITIES:    
Purchase of common stock (154)us-gaap_PaymentsForRepurchaseOfCommonStock  
Proceeds from exercise of stock options   6us-gaap_ProceedsFromStockOptionsExercised
Repurchase of stock options (32)pdex_RepurchaseOfStockOptions  
Payments made for common stock rights offering (3)pdex_NetProceedsReceivedFromCommonStockRightsOffering  
Principal payments on capital lease (6)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations (4)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Net cash provided by (used in) financing activities (195)us-gaap_NetCashProvidedByUsedInFinancingActivities 2us-gaap_NetCashProvidedByUsedInFinancingActivities
Net increase (decrease) in cash and cash equivalents (1,713)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 246us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents, beginning of period 3,188us-gaap_CashAndCashEquivalentsAtCarryingValue 1,680us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, end of period 1,475us-gaap_CashAndCashEquivalentsAtCarryingValue 1,926us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental disclosures of cash flow information:    
Promissory note issued in conjunction with a business acquisition 100us-gaap_NotesIssued1  
Interest 4us-gaap_InterestPaidNet 7us-gaap_InterestPaidNet
Income taxes $ 9us-gaap_IncomeTaxesPaidNet $ 7us-gaap_IncomeTaxesPaidNet