Note 7 - Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Cost of revenues	$	3	$	2	$	6	$	3
Selling expense		1		2		4		4
Engineering and product development expense		5		8		11		14
General and administrative expense		24		19		53		37
	$	33	$	31	$	74	$	58

Schedule of Nonvested Share Activity [Table Text Block]

	Number of Shares			Weighted Average Grant Date Fair Value
Nonvested shares outstanding, January 1, 2014		180,000		$	2.69
Granted		10,000			4.14
Vested		(63,125	)		1.78
Forfeited		(5,000	)		3.97
Nonvested shares outstanding, June 30, 2014		121,875			3.01

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

	Number of Shares			Weighted Average Exercise Price
Options outstanding, January 1, 2014 (10,000 exercisable)		10,000		$	5.66
Granted		-			-
Exercised		-			-
Forfeited/Expired		(10,000	)		5.66
Options outstanding, June 30, 2014		-			-