Note 15 - Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

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

	Number of Shares			Weighted Average Exercise Price
Options outstanding, January 1, 2011 (337,000 exercisable)		337,000		$	3.26
Granted		-			-
Exercised		(10,000	)		3.04
Canceled		(78,000	)		3.20
Options outstanding, December 31, 2011 (249,000 exercisable)		249,000			3.28
Granted		-			-
Exercised		-			-
Canceled		(30,000	)		4.11
Options outstanding, December 31, 2012 (219,000 exercisable)		219,000			3.17

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

Range of Exercise Prices			Number Outstanding and Exercisable at		Weighted Average Remaining Life (years)	Weighted Average Exercise Price		Aggregate Intrinsic Value
$3.04	-	$3.25		209,000	0.30	$	3.05	$	-
	$5.66			10,000	1.46	$	5.66		-
				219,000		$	3.17	$	-

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

	Years Ended December 31,
	2012		2011
Cost of revenues	$	5	$	10
Selling expense		9		15
Engineering and product development expense		24		40
General and administrative expense		75		81
	$	113	$	146

Schedule of Nonvested Share Activity [Table Text Block]

	Number of Shares			Weighted Average Grant Date Fair Value
Nonvested shares outstanding, January 1, 2011		303,250		$	1.89
Granted		-			-
Vested		(97,000	)		2.45
Forfeited		(11,250	)		1.73
Nonvested shares outstanding, December 31, 2011		195,000			1.62
Granted		-			-
Vested		(76,250	)		1.62
Forfeited		(10,000	)		1.42
Nonvested shares outstanding, December 31, 2012		108,750			1.63