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Organization, Use of Estimates and Basis of Presentation (Tables)

3 Months Ended

Jul. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Due to the net losses for the three months ended July 31, 2015 and 2014, basic and dilutive loss per share were the same, as the effect of potentially dilutive securities would have been anti-dilutive.

		Three Months Ended
		July 31,
		2015			2014
Basic loss per share computation
Net loss attributable to common stockholders		$	(2,913,101)		$	(3,547,883)
Weighted Average common shares – basic			8,702,237			5,573,822
Basic net loss per share		$	(0.33)		$	(0.64)
Diluted loss per share computation
Net loss attributable to common stockholders		$	(2,913,101)		$	(3,547,883)
Less: Gain on derivative warrant liability			-			155,634
Loss available to common stockholders		$	(2,913,101)		$	(3,703,517)
Weighted Average common shares			8,702,237			5,573,822
Incremental shares from assumed exercise of warrants and stock options			-			245,739
Adjusted weighted average share – diluted			8,702,237			5,819,561
Diluted net loss per share		$	(0.33)		$	(0.64)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table reflects the total potential share-based instruments outstanding at July 31, 2015 and 2014 that could have an effect on the future computation of dilution per common share:

		July 31,
		2015			2014
Stock options			2,014,507			1,948,524
Warrants			2,109,840			273,056
Total common stock equivalents			4,124,347			2,221,580

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 260



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 260



-SubTopic 10



-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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