CONSOLIDATED BALANCE SHEETS - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Current assets:
Cash and cash equivalents	$ 2,214,621	$ 2,852,422
Accounts receivable (net of allowance for doubtful accounts of $347,446 and $294,719, respectively)	3,068,218	3,305,466
Prepaid expenses and deposits	123,116	168,299
Total current assets	5,405,955	6,326,187
Deposits	91,051	97,667
Equipment	219,340	271,736
Goodwill	6,771,216	7,311,449
Other assets	190,375	216,125
Total Assets	12,677,937	14,223,164
Current liabilities:
Accounts payable and accrued liabilities	2,214,037	2,305,580
Accrued warranty	65,820	73,117
Customer deposits	8,070	0
Derivative liability	39,615	0
Unearned revenue	2,110,041	1,866,986
Total current liabilities	4,437,583	4,245,683
Deferred lease inducements	41,728	47,760
Unrecognized tax benefit	10,563	10,563
Total liabilities	4,489,874	4,304,006
Stockholders' equity:
Preferred stock, $0.001 par value Authorized: 100,000,000 Issued and outstanding: July 31, 2015 - nil; April 30, 2015 - nil	0	0
Common stock, $0.001 par value - Authorized: 100,000,000 Issued and outstanding: July 31, 2015 - 42,375,069; April 30, 2015 - 42,333,945	42,375	42,334
Treasury stock	(12)	(12)
Additional paid-in capital	67,979,876	67,599,913
Accumulated deficit	(56,442,010)	(55,330,905)
Accumulated other comprehensive loss - currency translation adjustment	(3,392,166)	(2,392,172)
Total stockholders' equity	8,188,063	9,919,158
Liabilities and Stockholders' Equity	$ 12,677,937	$ 14,223,164

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

- Definition

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.