Note 11 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

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

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2014		2013		2014		2013
Employee stock options	$	162	$	36	$	377	$	107
Total stock-based compensation expense	$	162	$	36	$	377	$	107

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

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2014		2013		2014		2013
General and administrative	$	162	$	36	$	365	$	95
Sales, marketing and customer service		—		—		12		11
Engineering, design and product management		—		—		—		1
Total stock-based compensation expense	$	162	$	36	$	377	$	107

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

	For the Three Months Ended June 30,					For the Six Months Ended June 30,
	2014			2013		2014			2013
Expected term		3.75			—		3.75			—
Risk-free interest rate		1.25	%		—		1.25	%		—
Volatility		1.22	%		—		1.22	%		—
Dividend yield		0			—		0			—

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

	2014					2013
				Weighted-					Weighted-
				Average					Average
				Exercise					Exercise
				Price Per					Price Per
	Shares			Share		Shares			Share
Outstanding as of January 1,		7,114,250		$	0.20		5,836,500		$	0.45
Granted		—			—		—			—
Exercised		—			—		—			—
Forfeited		(559,250	)		0.29		(1,251,000	)		0.43
Outstanding as of March 31,		6,555,000		$	0.19		4,585,500		$	0.46
Granted		10,650,000			0.31		—			—
Exercised		—			—		—			—
Forfeited		(357,500	)		0.29		(1,255,250	)		0.57
Outstanding as of June 30,		16,847,500		$	0.27		3,330,250		$	0.41