Common shares [Member] Preferred shares [Member] Additional Paid-In Capital [Member] Accumulated Deficit [Member] Accumulated Other Comprehensive Loss [Member] Document, Entity Information Statement Entities [Table] Legal Entity [Axis] Entity [Domain] Document and Entity Information Document Type Amendment Flag Amendment Description Document Period End Date Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Voluntary Filers Entity Well Known Seasoned Issuer Entity Public Float Document Fiscal Year Focus Document Fiscal Period Focus Statement of Financial Position Statement [Table] Statement [Line Items] Assets Current assets: Cash Accounts receivable (net of allowance for doubtful accounts of $244,576 and $49,883, respectively) Prepaid expenses and deposits Investment tax credits recoverable Other current assets Total current assets Total current assets Deposits Equipment Intangible assets (net of accumulated amortization of $5,787,305 and $5,103,570, respectively) - (d) Goodwill - (d) Other assets Total Assets Total Assets Liabilities and Stockholders' Equity Current liabilities: Accounts payable and accrued liabilities Derivative liability - Unearned revenue Customer deposits Accrued warranty Total current liabilities Total current liabilities Deferred lease inducements Convertible debentures - Unrecognized tax benefit Total liabilities Total liabilities Stockholders' equity: Preferred stock, $0.001 par value Authorized: 100,000,000 Issued and outstanding: January 31, 2012 - 1; April 30, 2011 - 1 Common stock, $0.001 par value - Authorized: 83,076,900 Issued and outstanding: January 31, 2012 - 39,908,297; April 30, 2011 - 33,439,906 Additional paid-in capital Accumulated deficit Accumulated other comprehensive income (loss) - currency translation adjustment Total stockholders' equity Total stockholders equity Liabilities and Stockholders' Equity Liabilities and Stockholders Equity (LiabilitiesAndStockholdersEquity) Allowance for Doubtful Accounts Receivable, Current Accumulated Amortization of Intangible Assets Preferred Stock, Par Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Income Statement Revenue - : Software Software Service Total revenue Total revenue Operating expenses: Cost of sales (includes depreciation of $17,363 (2011 - $15,835) and amortization of intangible assets of $683,735 (2011 - $633,038) - (d)) Sales and marketing Research and development General and administrative Restructuring costs Total operating expenses Total operating expenses Loss from operations Loss from operations Interest and other income (expense), net: Interest and other income Interest expense Interest expense Change in fair value of derivative liability - Gain on settlement of debt Foreign exchange gain Net loss for the period Net loss for the period Other comprehensive income (loss): Foreign currency translation adjustments Comprehensive loss Comprehensive loss Net loss per share: Basic and diluted Weighted average common shares outstanding: Depreciation Amortization of Intangible Assets Statement of Cash Flows Cash flows from operating activities: Net loss for the period Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization Amortization of intangible assets Stock-based compensation Share purchase warrants Shares issued as part of share purchase plan Change in fair value of derivative liability Foreign exchange loss Foreign exchange loss Accretion of debenture discount Changes in assets and liabilities: Accounts receivable Accounts receivable Prepaid expenses and deposits Prepaid expenses and deposits (IncreaseDecreaseInPrepaidExpense) Other current assets Other current assets (IncreaseDecreaseInOtherCurrentAssets) Decrease in other assets Decrease in other assets Accounts payable and accrued liabilities Accounts payable and accrued liabilities (IncreaseDecreaseInAccountsPayableAndAccruedLiabilities) Unearned revenue Unearned revenue (IncreaseDecreaseInDeferredRevenue) Customer deposits Customer deposits (IncreaseDecreaseInCustomerDeposits) Accrued warranty Accrued warranty (ProductWarrantyAccrualPeriodIncreaseDecrease) Net cash used in operating activities Net cash used in operating activities Cash flows from investing activities: Purchase of equipment Purchase of equipment Deposits Deposits (PaymentsForProceedsFromDepositOnLoan) Net cash provided by (used in) investing activities Net cash provided by (used in) investing activities Cash flows from financing activities: Common stock issued, net of transaction costs Convertible debentures issued Net cash provided by financing activities Net cash provided by financing activities Foreign exchange effect on cash Increase in cash Increase in cash Cash, beginning of the period Cash, beginning of the period Cash, end of the period Cash paid for: Interest Taxes Statement, Equity Components [Axis] Statement, Equity Components [Domain] Statement of Stockholders Equity Beginning Balance Beginning Balance (Shares) Beginning Balance (Shares) Private Placements Private Placements (Shares) Issued as part of debt settlement Issued as part of debt settlement Issued as part of debt settlement (Shares) Shares Issued (Shares) Less: Proceeds allocated to warrants Less: Proceeds allocated to warrants Less: Share issue costs Issued on conversion of debentures Issued on conversion of debentures (Shares) Shares issued on exercise of warrants Shares issued on exercise of warrants (Shares) Exercise of stock options Exercise of stock options (Shares) Employee share purchase plan Employee share purchase plan (Shares) Exchange of subsidiary preferred shares Exchange of subsidiary preferred shares Exchange of subsidiary preferred shares (Shares) Stock-based compensation Stock-based compensation (AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue) Discount on convertible debenture - beneficial conversion feature Net loss for the period Foreign currency translation adjustment Ending Balance Ending Balance (Shares) Notes to the Financial Statements Nature of Operations [Text Block] Significant Accounting Policies and Going Concern [Text Block] Equipment [Text Block] Accounts Payable and Accrued Liabilities [Text Block] Related Party Transactions [Text Block] Convertible Debentures [Text Block] Exchangeable Shares [Text Block] Exchangeable Shares [Text Block] Common Stock [Text Block] Income Taxes [Text Block] Segmented Information [Text Block] Commitments [Text Block] Derivative Instruments and Hedging Activities [Text Block] Contingent Liability [Text Block] Restructuring [Text Block] Gain on Settlement of Debt [Text Block] Subsequent Events [Text Block] Restatement [Text Block]