Note 10 - Shareholders Equity (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	Warrants Outstanding			Weighted Average Exercise Price
Balance, December 31, 2009		4,437,639		$	1.24
Warrants issued		855,000			0.50
Warrants exercised		(1,730,062	)		0.01
Warrants cancelled		(271,199	)		4.50
Balance, December 31, 2010		3,291,378		$	1.42
Warrants issued		125,000			0.01
Warrants exercised		(160,000	)		0.01
Balance, December 31, 2011		3,256,378		$	1.43
Warrants issued		9,800,000			0.54
Balance, December 31, 2012		13,056,378		$	0.76
Exercisable, December 31, 2012		12,856,378		$	0.77

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

Impact on Results for Stock-based Compensation

	Years ended December 31,
	2012		2011		2010
Cost of sales	$	-	$	-	$	2
Research and development		27		37		43
Sales and marketing		27		141		96
General and administrative		146		248		737
Total stock-based compensation	$	200	$	426	$	878

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

	2012			2011			2010
Expected life of option (years)		5.6			6.1			4.0
Risk-free interest rate		0.82	%		2.36	%		1.61	%
Expected volatility		59.00	%		56.35	%		98.31	%
Dividend yield		0	%		0	%		0	%

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

	Number of Options			Weighted Average Exercise Price Per Share
Outstanding at December 31, 2009		1,769,750		$	3.63
Granted		1,115,000			1.08
Cancelled		(993,583	)		1.68
Exercised		(13,750	)		0.60
Outstanding at December 31, 2010		1,877,417		$	3.36
Granted		1,040,000			0.84
Cancelled		(591,419	)		2.99
Exercised		(7,500	)		0.60
Outstanding at December 31, 2011		2,318,498		$	2.28
Granted		120,000			0.27
Cancelled		(253,915	)		2.22
Exercised		-			-
Outstanding at December 31, 2012		2,184,583		$	2.20
Vested and Expected to Vest at December 31, 2012		2,058,833		$	2.29
Exercisable at December 31, 2012		1,494,063		$	2.87

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

Range of Exercise Prices				Number of Shares Outstanding		Weighted Average Remaining Contactual Life		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
						(in years)
	$0.26	-	$0.71		729,500		8.2	$	0.52		341,279	$	0.56
	$1.00	-	$1.40		803,333		7.5	$	1.16		501,034	$	1.07
	$2.00	-	$3.35		248,750		5.0	$	2.12		248,750	$	2.12
	$4.91	-	$6.45		167,000		4.5	$	6.04		167,000	$	6.04
	$7.00	-	$11.66		236,000		2.7	$	8.29		236,000	$	8.29
					2,184,583		6.7	$	2.20		1,494,063		2.87

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

	Restricted Stock Outstanding			Weighted Average Grant Date Fair Value
At December 31, 2009		228,128		$	0.67
Granted		392,490			1.01
Vested		(122,989	)		1.51
At December 31, 2010		497,629		$	0.73
Granted		114,767			0.96
Vested		(197,721	)	$	0.87
At December 31, 2011		414,675		$	0.73
Granted		-			-
Vested		-			-
At December 31, 2012		414,675		$	0.73

Warrants or Rights Outstanding and Exercisable [Member]

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Exercise Price		Number of Shares Outstanding		Weighted Average Remaining Contactual Life		Number of Shares Exercisable		Weighted Average Remaining Contactual Life
				(in years)				(in years)
$	0.01		300,000		2.7		300,000		2.7
$	0.49		600,000		2.0		400,000		2.0
$	0.54		9,800,000		2.2		9,800,000		2.2
$	1.20		350,000		2.2		350,000		2.2
$	1.97		2,006,378		0.2		2,006,378		0.2
			13,056,378		3.4		12,856,378		3.4