Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended September 30,						Nine months ended September 30,
	2012			2011			2012			2011
Basic and diluted loss per share:
Net loss	$	(928	)	$	(1,459	)	$	(3,695	)	$	(5,445	)
Basic and diluted loss per share:
Weighted average shares outstanding		44,542			24,845			40,241			24,610
Basic and diluted net loss per share	$	(0.02	)	$	(0.06	)	$	(0.09	)	$	(0.22	)

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

	Three months ended September 30,				Nine months ended September 30,
	2012		2011		2012		2011
Stock option expense	$	42	$	75	$	146	$	171
Executive & Director stock-based compensation		-		-		-		107
Employee incentive stock-based compensation		-		-		-		106
Total stock-based compensation	$	42	$	75	$	146	$	384

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

	Nine months ended September 30,
	2012			2011
Fair value of options issued	$	0.15		$	0.45
Exercise price	$	0.27		$	0.83
Expected life of option (years)		5.6			6.1
Risk-free interest rate		0.82	%		2.14	%
Expected volatility		59.00	%		56.39	%
Dividend yield		0	%		0	%

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

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractural Term (in Years)
Outstanding as of December 31, 2011		2,318,498		$	2.28
Granted		120,000		$	0.27
Exercised		-		$	-
Cancelled/forfeited		(212,248	)	$	2.52
Outstanding as of September 30, 2012		2,226,250		$	2.17		7.0
Exercisable as of September 30, 2012		1,394,611		$	3.02		6.1

Schedule of Product Warranty Liability [Table Text Block]

	Three months ended September 30,						Nine months ended September 30,
	2012			2011			2012			2011
Balance at the beginning of the period	$	125		$	100		$	100		$	126
Accruals for warranties issued		52			23			110			45
Settlements made during the period (in cash or in kind)		(18	)		(23	)		(51	)		(71	)
Balance at the end of the period	$	159		$	100		$	159		$	100