Note 12 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Exercise  Price			Options Outstanding as of December 31, 2016		Weighted Average Remaining Contractual Term (Years)		Weighted Average Exercise Price		Option Exercisable as of December 31, 2016		Weighted Average Exercise Price of Options Exercisable
$0.65	-	$0.70		1,865,000		9.76	$	0.67		996,667	$	0.66
$1.10	-	$1.32		25,000		6.84	$	1.28		15,000	$	1.25
$1.51	-	$1.69		366,000		5.57	$	1.60		316,000	$	1.59
				2,256,000		9.05	$	0.83		1,327,667	$	0.89

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

	2016		2015
Cost of revenues	$	6	$	7
Engineering and product development		17		20
Selling and marketing		5		6
General and administrative		492		193
Total stock-based compensation	$	520	$	226

Incentive Share Option Plan [Member]

Notes Tables

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

	Amount of Options			Weighted Average Exercise Price		Weighted Average remaining Contractual Term (Years)		Aggregate Intrinsic Value
Balance at January 1, 2015		1,262,763		$	1.57		7.65
Granted		155,000			0.67
Forfeited		(261,000	)		1.29
Expired		(10,763	)		0.70
Balance at December 31, 2015		1,146,000			1.52		6.74
Granted		1,800,000			0.67
Forfeited		(650,000	)		1.59
Expired		(40,000	)		1.16
Balance outstanding at December 31, 2016		2,256,000		$	0.83		9.08	$	-
Exercisable at December 31, 2016		1,327,667		$	0.89		8.64	$	-

Warrant [Member]

Notes Tables

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

	Amount of Warrants		Weighted Average Exercise Price		Weighted Average remaining Contractual Term (Years)		Aggregate Intrinsic Value
Balance at January 1, 2016		-		-		-		-
Granted		317,460	$	0.01
Forfeited		-
Expired
Balance outstanding at December 31, 2016		317,460	$	0.01		9.8	$	203
Exercisable at December 31, 2016		-		-				-