Note 13 - Shareholders Equity (Tables)

12 Months Ended

Dec. 31, 2013

Note 13 - Shareholders Equity (Tables) [Line Items]

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

Description of Warrants	Original Exercise Price		Exercise Price at December 31, 2013		Exercise Price at December 31, 2012
2012 Private Placement	$	0.54	$	0.43	$	0.54
2009 Strategic Alliance		0.65		0.40		0.49
2008 Private Placement		3.08		n/a		1.97

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

	Warrants Outstanding			Weighted Average Exercise Price During the Period
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
Warrants issued		25,494			0.35
Warrants expired		(2,006,378	)		1.97
Balance, December 31, 2013		11,075,494		$	0.44
Exercisable, December 31, 2013		11,075,494		$	0.44

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

	2013		2012		2011
Cost of sales	$	5	$	-	$	-
Research and development		28		27		37
Sales and marketing		32		27		141
General and administrative		136		146		248
Total stock-based compensation	$	201	$	200	$	426

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

	2013			2012			2011
Expected life of option (years)		7.0			5.6			6.1
Risk-free interest rate		1.36	%		0.82	%		2.36	%
Expected volatility		92.00	%		59.00	%		56.35	%
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, 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
Granted		2,079,500			0.31
Cancelled		(1,382,190	)		0.77
Exercised		(20,000	)		0.52
Outstanding at December 31, 2013		2,861,893		$	1.53
Vested and Expected to Vest at December 31, 2013		2,655,321		$	1.24
Exercisable at December 31, 2013		1,914,697		$	2.08

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

OPTIONS OUTSTANDING										OPTIONS EXERCISABLE
Range of Exercise Prices				Number of Shares Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
						(in years)
$	0.23	-	$0.23		855,000		9.2	$	0.23		398,332	$	0.23
$	0.26	-	$0.76		772,394		8.5		0.52		350,932		0.54
$	1.00	-	$2.33		882,499		5.9		1.37		813,433		1.39
$	4.91	-	$6.36		160,000		3.5		6.03		160,000		6.03
$	7.00	-	$10.64		192,000		1.9		8.38		192,000		8.38
					2,861,893		7.2	$	1.53		1,914,697		2.08

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, 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
Granted		-			-
Vested		(40,865	)		0.73
At December 31, 2013		373,810		$	0.73

Warrants or Rights Outstanding and Exercisable [Member]

Note 13 - Shareholders Equity (Tables) [Line Items]

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

WARRANTS OUTSTANDING
Exercise Price		Number of Shares Outstanding		Weighted Average Remaining Contactual Life
				(in years)
$	0.01		300,000		1.7
$	0.35		25,494		2.9
$	0.40		600,000		1.0
$	0.43		9,800,000		1.2
$	1.20		350,000		1.2
			11,075,494		1.2