Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Summary of income (loss) before income taxes by geographically

	2014			2013			2012
Domestic	$	(13,993	)	$	(12,877	)	$	(10,283	)
Foreign		(228	)		(94	)		1,121
Total	$	(14,221	)	$	(12,971	)	$	(9,162	)

Summary of provision for income taxes

	2014			2013			2012
Current
Federal	$	-		$	-		$	--
State		3			2			2
Foreign		10			107			123
Change in deferred
Federal		(4,214	)		(3,794	)		(3,653	)
Federal valuation allowance		4,214			3,794			3,653
State		(460	)		129			453
State valuation allowance		460			(129	)		(453	)
Foreign		64			111			276
Foreign valuation allowance		(64	)		(111	)		(276	)
Total current	$	13		$	109		$	125

Summary of reconciliation of effective income tax rate and statutory federal income tax rate

	2014			2013			2012
Amounts at statutory tax rates		34	%		34	%		34	%
Foreign losses taxed at different rates		(1	)%		--			1	%
Stock-based compensation		(2	)%		(3	)%		(7	)%
Other		(1	)%		(1	)%		--
Total		30	%		30	%		28	%
Valuation allowance		(31	)%		(31	)%		(29	)%
Effective tax rate		(1)	%		(1	)%		(1	)%

Summary of significant components of the deferred tax

	2014			2013
Deferred tax assets:
Accruals	$	1,053		$	1,519
Stock compensation		1,210			1,070
Net operating losses		14,681			9,760
Total deferred tax assets	$	16,944		$	12,349
Basis difference in fixed assets		2			(14	)
Valuation allowance		(16,946	)		(12,335	)
Total net deferred tax assets	$	--		$	--