Share-Based Payments (Tables)

6 Months Ended

Oct. 31, 2013

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,
	2013		2012		2013		2012
General and administrative	$	401	$	550	$	820	$	1,119
Sales and marketing		63		61		126		143
Research and development		3		3		16		29
TOS cost of sales		3		4		11		12
POS cost of sales		6		6		55		61
Total stock-based compensation expense	$	476	$	624	$	1,028	$	1,364

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, 2013 and 2012 were as follows (in thousands):

	Three Months Ended		Six Months Ended
	October 31,		October 31,
	2013	2012	2013	2012
Expected term in years	6.0	6.0	6.0	6.0
Risk-free interest rates	1.13% - 2.41%	0.9%	1.13% - 2.41%	0.8% - 0.9%
Volatility	97.9% - 101.4%	99% - 100%	97.9% - 101.4%	99% - 100%
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, 2013 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, 2013	765,000	13,125,205	13,890,205	$	0.85	7.0	$	89,000
Granted	-	1,645,000	1,645,000		1.18	9.8		237,000
Exercised	-	(15,000)	(15,000)		0.62
Forfeited	-	(20,000)	(20,000)		0.50
Expired	-	(26,250)	(26,250)		0.75
Outstanding, October 31, 2013	765,000	14,708,955	15,473,955		0.89	6.8		6,290,000
Vested and expected to
vest as of October 31, 2013	765,000	14,708,955	15,473,955		0.89	6.8		6,290,000
Exercisable as of
October 31, 2013	514,792	13,014,370	13,529,162		0.85	6.5		2,703,000

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

A summary of the activity related to restricted stock grants is as follows (in thousands):

		Weighted
		Average Grant
		Date Fair Value
	Shares	Per Share
Nonvested as of May 1, 2013	50,000	$	0.30
Granted	-		-
Vested	(50,000)		0.30
Forfeited	-		-
Expired	-		-
Nonvested as of October 31, 2013	-		-

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	Aggregate
	of	Exercise		Contractual	Intrinsic
	Shares	Price		Life (Years)	Value
Outstanding, May 1, 2013	3,276,667	$	0.61	3.9	$	-
Granted	-		-	-		-
Exercised	-		-	-		-
Expired	-		-	-		-
Outstanding, October 31, 2013	3,276,667	$	0.61	3.4	$	2,215,967