Note 8 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Note 8 - Shareholders' Equity (Tables) [Line Items]

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

Exercise Price					Options outstanding as of December 31, 2014		Weighted average remaining contractual term		Weighted average exercise price		Options exercisable as of December 31, 2014		Weighted average exercise price of options exercisable
							Years
$	0.68		-	0.84		55,763		4.70	$	0.73		45,763	$	0.74
$	1.05		-	1.32		80,000		4.92	$	1.21		50,000	$	1.15
$	1.51		-	1.69		1,077,000		8.29	$	1.65		339,500	$	1.54
		$	1.79			50,000		5.61	$	1.79		50,000	$	1.79
						1,262,763		7.65	$	1.57		485,263	$	1.45

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

	Year ended December 31,
	2014		2013
Cost of revenues	$	4	$	1
Engineering and product development expenses		17		4
Selling and marketing expenses		7		3
General and administration expenses		219		98
Total equity-based compensation expense	$	247	$	106

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

Issuance date	Options for Common shares		Exercise price per share		Options exercisable
February 2005		20,000	$	1.19		20,000
March 2006		100,000	$	1.16		100,000
December 2010		21,500	$	1.51		21,500
		141,500				141,500

Option Plans [Member]

Note 8 - Shareholders' Equity (Tables) [Line Items]

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

	Year ended December 31, 2014
	Amount of options			Weighted average exercise price		Weighted average remaining contractual term (years)		Aggregate intrinsic value
Outstanding beginning of year		712,763		$	1.33		5.38	$	-
Granted		795,000		$	1.59
Exercised		( 92,500	)	$	.93
Forfeited		( 72,500	)	$	1.66
Expired		( 80,000	)	$	1.38
Outstanding end of year		1,262,763		$	1.57		7.65	$	41.57
Exercisable end of year		485,263		$	1.45		5.26	$	34.27