INTERIM CONSOLIDATED BALANCE SHEETS (USD $)	Jan. 31, 2015	Apr. 30, 2014
Current assets:
Cash and cash equivalents	$ 3,703,510us-gaap_Cash	$ 7,172,798us-gaap_Cash
Accounts receivable (net of allowance for doubtful accounts of $340,228 and $240,681, respectively)	3,168,559us-gaap_AccountsReceivableNetCurrent	3,401,491us-gaap_AccountsReceivableNetCurrent
Prepaid expenses and deposits	172,279us-gaap_PrepaidExpenseCurrent	161,627us-gaap_PrepaidExpenseCurrent
Total current assets	7,044,348us-gaap_AssetsCurrent	10,735,916us-gaap_AssetsCurrent
Deposits	93,140us-gaap_DepositsAssetsNoncurrent	125,267us-gaap_DepositsAssetsNoncurrent
Equipment	166,259us-gaap_PropertyPlantAndEquipmentNet	154,293us-gaap_PropertyPlantAndEquipmentNet
Goodwill	6,941,833us-gaap_Goodwill	8,018,578us-gaap_Goodwill
Other assets	124,286us-gaap_OtherAssetsNoncurrent	102,836us-gaap_OtherAssetsNoncurrent
Total Assets	14,369,866us-gaap_Assets	19,136,890us-gaap_Assets
Current liabilities:
Accounts payable and accrued liabilities	2,288,587	2,326,763
Unearned revenue	1,736,904us-gaap_DeferredRevenueCurrent	1,625,826us-gaap_DeferredRevenueCurrent
Customer deposits	0us-gaap_CustomerDepositsCurrent	9,553us-gaap_CustomerDepositsCurrent
Accrued warranty	77,199us-gaap_ProductWarrantyAccrual	69,159us-gaap_ProductWarrantyAccrual
Total current liabilities	4,102,690us-gaap_LiabilitiesCurrent	4,031,301us-gaap_LiabilitiesCurrent
Deferred lease inducements	47,912	0
Unrecognized tax benefit	25,631us-gaap_UnrecognizedTaxBenefits	25,631us-gaap_UnrecognizedTaxBenefits
Total liabilities	4,176,233us-gaap_Liabilities	4,056,932us-gaap_Liabilities
Stockholders' equity:
Preferred stock, $0.001 par value Authorized: 100,000,000 Issued and outstanding: January 31, 2015 - nil; April 30, 2014 - nil	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common stock, $0.001 par value - Authorized: 100,000,000 Issued and outstanding: January 31, 2015 - 42,404,479; April 30, 2014 - 42,599,869	42,404us-gaap_CommonStockValue	42,600us-gaap_CommonStockValue
Treasury stock	(77)us-gaap_TreasuryStockValue	(16)us-gaap_TreasuryStockValue
Additional paid-in capital	67,403,896us-gaap_AdditionalPaidInCapital	66,910,540us-gaap_AdditionalPaidInCapital
Accumulated deficit	(53,916,278)	(50,889,038)
Accumulated other comprehensive loss - currency translation adjustment	(3,336,312)	(984,128)
Total stockholders' equity	10,193,633us-gaap_StockholdersEquity	15,079,958us-gaap_StockholdersEquity
Liabilities and Stockholders' Equity	$ 14,369,866	$ 19,136,890

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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This element represents revenue received, but not recognized for financial reporting purposes, which is anticipated to be recognized for financial reporting purposes more than one year from the reporting date or one operating cycle, if longer. Such deferred revenue may consist of and include amounts paid in advance by lessees and purchase price adjustments for leases acquired in a business combination or other transaction and is net of the accumulated amortization of such amounts that to date have been recognized in revenue.

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Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment after one year or beyond the operating cycle, if longer.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.

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Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.

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Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

Name:	us-gaap_UnrecognizedTaxBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant