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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Operating activities    
Net income (loss) $ 1,463,395us-gaap_NetIncomeLoss $ (2,258,440)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation expense 199,627us-gaap_ShareBasedCompensation 528,878us-gaap_ShareBasedCompensation
Change in fair value of derivative instruments (338,245)us-gaap_UnrealizedGainLossOnDerivatives (242,641)us-gaap_UnrealizedGainLossOnDerivatives
Depreciation expense 37,106us-gaap_Depreciation 39,939us-gaap_Depreciation
Deferred income taxes 19,805us-gaap_DeferredIncomeTaxExpenseBenefit 29,705us-gaap_DeferredIncomeTaxExpenseBenefit
Non-cash interest expense 10,933us-gaap_PaidInKindInterest 26,591us-gaap_PaidInKindInterest
Gain on the disposal of property and equipment (7,600)us-gaap_GainLossOnSaleOfPropertyPlantEquipment (5,393)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Changes in operating assets and liabilities:    
Billed accounts receivable (5,863,332)us-gaap_IncreaseDecreaseInAccountsReceivable 1,427,113us-gaap_IncreaseDecreaseInAccountsReceivable
Unbilled accounts receivable (296,828)us-gaap_IncreaseDecreaseInUnbilledReceivables 549,629us-gaap_IncreaseDecreaseInUnbilledReceivables
Prepaid expenses and other current assets (253,779)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets (178,704)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable 146,740us-gaap_IncreaseDecreaseInAccountsPayable (656,373)us-gaap_IncreaseDecreaseInAccountsPayable
Accrued restructuring expenses 1,938,631us-gaap_RestructuringReservePeriodIncreaseDecrease   
Accrued expenses and other liabilities 230,186us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities (1,274,906)us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
Deferred revenue    (279,462)us-gaap_IncreaseDecreaseInDeferredRevenue
Net cash used in operating activities (2,713,361)us-gaap_NetCashProvidedByUsedInOperatingActivities (2,294,064)us-gaap_NetCashProvidedByUsedInOperatingActivities
Investing activities    
Purchases of property and equipment (35,352)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (37,050)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from the sale of property and equipment 7,600us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 8,000us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Net cash used in investing activities (27,752)us-gaap_NetCashProvidedByUsedInInvestingActivities (29,050)us-gaap_NetCashProvidedByUsedInInvestingActivities
Financing activities    
Repayment of debt (249,999)us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt (249,999)us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt
Net repayment of revolving credit agreement    (1,091,740)us-gaap_ProceedsFromRepaymentsOfLinesOfCredit
Proceeds from issuance of common stock, net of offering costs 84,332us-gaap_ProceedsFromIssuanceOfCommonStock 2,719,184us-gaap_ProceedsFromIssuanceOfCommonStock
Net cash (used in) provided by financing activities (165,667)us-gaap_NetCashProvidedByUsedInFinancingActivities 1,377,445us-gaap_NetCashProvidedByUsedInFinancingActivities
Effects of exchange rates on cash (11,615)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents (590)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Decrease in cash and cash equivalents (2,918,395)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (946,259)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents, at beginning of period 18,643,351us-gaap_CashAndCashEquivalentsAtCarryingValue 10,480,979us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, at end of period 15,724,956us-gaap_CashAndCashEquivalentsAtCarryingValue 9,534,720us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental disclosure of cash flow information    
Cash paid for interest $ 14,849us-gaap_InterestPaid $ 43,287us-gaap_InterestPaid