Share-Based Payments (Tables)

12 Months Ended

Apr. 30, 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 costs were recorded as follows (in thousands):

	Year Ended April 30,
	2014		2013
General and administrative	$	2,298	$	1,984
Sales and marketing		352		263
Research and development		36		37
TOS cost of sales		56		20
POS cost of sales		65		72
Total stock-based compensation expense	$	2,807	$	2,376

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 years ended April 30, 2014 and 2013 were as follows:

	Year Ended April 30,
	2014	2013
Expected term in years	3.0 - 6.0	3.0 - 6.0
Risk-free interest rates	0.7% - 2.4%	0.7% - 1.3%
Volatility	84% - 102%	88% - 104%
Dividend yield	0%	0%

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

The Company’s stock options activity and related information as of and for the years ended April 30, 2014 and 2013 is as follows (dollars in thousands):

									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		-		9,793,332		9,793,332		1.23
Exercised		-		(33,750)		(33,750)		0.63
Canceled		-		-		-		-
Forfeited		-		(72,500)		(72,500)		0.82
Expired		-		(226,250)		(226,250)		0.73
Outstanding, April 30, 2014		765,000		22,586,037		23,351,037		1.01		7.5	$	985,000
Vested and expected to vest as of April 30, 2014		765,000		22,586,037		23,351,037				7.5	$	985,000
Exercisable as of April 30, 2014		522,292		13,042,285		13,564,577		0.85		6.1	$	927,000

									Weighted
							Weighted		Average
			Directors				Average		Remaining		Aggregate
	Non-		and				Exercise		Contractual		Intrinsic
	Employees		Employees		Total		Price		Life (Years)		Value
Outstanding, May 1, 2012		1,410,000		13,456,038		14,866,038	$	0.88		7.6	$	-
Granted		130,000		611,250		741,250		0.41
Exercised		-		-		-		-
Canceled		-		(25,000)		(25,000)		0.62
Forfeited		-		(551,250)		(551,250)		0.72
Expired		(775,000)		(365,833)		(1,140,833)		0.95
Outstanding, April 30, 2013		765,000		13,125,205		13,890,205		0.85		7.0	$	89,000
Vested and expected to vest as of April 30, 2013		765,000		13,125,205		13,890,205				7.0	$	89,000
Exercisable as of April 30, 2013		458,334		10,886,120		11,344,454		0.86		6.9	$	54,000

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 for the years ended April 30, 2014 and 2013 is as follows (dollars in thousands):

	2014			2013
		Weighted			Weighted
		Average			Average
		Grant Date			Grant Date
	Total	Fair Value		Total	Fair Value
	Shares	Per Share		Shares	Per Share
Nonvested, beginning of period	50,000	$	0.30	25,000	$	0.75
Granted	-		-	100,000		0.30
Vested	(50,000)		0.30	(75,000)		0.45
Forfeited	-		-	-
Expired	-		-	-
Nonvested, end of period	-		-	50,000		0.30

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	-		-
Forfeited	-		-
Expired	-		-
Outstanding, April 30, 2014	3,276,667	$	0.61	2.9	$	984,333

					Weighted
			Weighted		Average
	Number		Average		Remaining		Aggregate
	of		Exercise		Contractual		Intrinsic
	Shares		Price		Life (Years)		Value
Outstanding, May 1, 2012		1,416,667	$	0.50		3.8	$	-
Granted		1,860,000		0.66		4.8
Exercised		-		-
Forfeited		-		-
Expired		-		-
Outstanding, April 30, 2013		3,276,667	$	0.61		3.9	$	-