INTERIM CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Common shares [Member]	Treasury Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss[Member]	Total
Beginning Balance at Apr. 30, 2014	$ 42,600	$ (16)	$ 66,910,540	$ (50,889,038)	$ (984,128)	$ 15,079,958us-gaap_StockholdersEquity
Beginning Balance (Shares) at Apr. 30, 2014	42,599,869	(16,200)
Exercise of stock options	67		(11,565)			(11,498)
Exercise of stock options (Shares)	67,892
Share repurchase plan		(324)	(298,542)			(298,866)
Share repurchase plan (Shares)		(324,126)
Cancellation of shares	(263)	263
Cancellation of shares (Shares)	(263,282)	263,282
Stock-based compensation			803,463			803,463
Net loss for the period				(3,027,240)		(3,027,240)us-gaap_NetIncomeLoss
Foreign currency translation adjustment					(2,352,184)	(2,352,184)
Ending Balance at Jan. 31, 2015	$ 42,404	$ (77)	$ 67,403,896	$ (53,916,278)	$ (3,336,312)	$ 10,193,633us-gaap_StockholdersEquity
Ending Balance (Shares) at Jan. 31, 2015	42,404,479	(77,044)

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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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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Number of share options (or share units) exercised during the current period.

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Value of stock issued as a result of the exercise of stock options.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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