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Share-Based Payments (Tables)

6 Months Ended

Oct. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Stock-based compensation expense was recognized as follows (in thousands):

		Three Months Ended						Six Months Ended
		October 31,						October 31,
		2014			2013			2014			2013
General and administrative		$	513		$	401		$	1,055		$	820
Sales and marketing			179			63			333			126
Research and development			98			3			203			16
TOS cost of sales			16			3			18			11
POS cost of sales			14			6			18			55
Total stock-based compensation expense		$	820		$	476		$	1,627		$	1,028

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Black-Scholes assumptions used to calculate the fair value of options granted during the three and six months ended October 31, 2014 and 2013 were as follows (in thousands):

		Three Months Ended				Six Months Ended
		October 31,				October 31,
		2014		2013		2014		2013
Expected term in years		5.0 - 6.0		6.0		3.0 - 6.0		6.0
Risk-free interest rates		1.53% - 1.94%		1.13% - 2.41%		0.79% - 1.94%		1.13% - 2.41%
Volatility		85.8% - 102.1%		97.9% - 101.4%		85.8% - 102.1%		97.9% - 101.4%
Dividend yield		0%		0%		0%		0%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The Company’s stock options activity for the six months ended October 31, 2014 is as follows:

											Weighted
								Weighted			Average
				Directors				Average			Remaining		Aggregate
		Non-		and				Exercise			Contractual		Intrinsic
		Employees		Employees		Total		Price			Life (Years)		Value
Outstanding, May 1, 2014		765,000		22,586,037		23,351,037		$	1.01		7.5		$	985
Granted		80,000		1,013,175		1,093,175			0.72		6.1			74
Exercised		-		(3,750)		(3,750)			0.49
Forfeited		-		(11,250)		(11,250)			0.49
Expired		(150,000)		(22,500)		(172,500)			1.12
Outstanding, October 31, 2014		695,000		23,561,712		24,256,712			1.00		7.0			334
Vested and expected to
vest as of October 31, 2014		695,000		23,561,712		24,256,712			1.00		7.0			334
Exercisable as of
October 31, 2014		487,500		15,366,589		15,854,089			0.90		6.1			269

Schedule Of Share Based Compensation Warrants Activity [Table Text Block]

Activity related to these warrants, which expire at various dates through April 2016, is summarized as follows (dollars in thousands):

							Weighted
				Weighted			Average
		Number		Average			Remaining
		of		Exercise			Contractual
		Shares		Price			Life (Years)
Outstanding, May 1, 2014		3,276,667		$	0.61		2.9
Granted		-			-		-
Exercised		-			-		-
Expired		(150,000)			-		-
Outstanding, October 31, 2014		3,126,667		$	0.60		2.5

Schedule Of Share Based Payment Award Stock Warrants Valuation Assumptions [Table Text Block]

Assumptions used to calculate the fair value of these warrants were as follows:

		October 31,		April 30,
		2014		2014
Expected term in years		1.4 - 3.2		1.9 - 3.7
Risk-free interest rates		0.4% - 1.05%		0.4% - 1.17%
Volatility		74% - 97%		95% - 113%
Dividend yield		0%		0%

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for warrants that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

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