Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes

Schedule of significant components of deferred tax assets (liabilities)

Significant components of our deferred tax assets (liabilities) as of December 31, 2014 and 2013 are as follows (in thousands):

	December 31
	2014			2013
Net operating loss carryforwards	$	32,103		$	32,253
Net operating loss carryforwards of foreign subsidiaries	374			374
Book over tax depreciation	(54		)	(43		)
Stock-based compensation expense	10			577
Other	125			116
Deferred tax assets	32,558			33,277
Valuation allowance for deferred tax assets	(32,558		)	(33,277		)
Deferred tax assets, net of allowance	$	—		$	—

Schedule of differences between the provision for income taxes and income taxes computed using the federal statutory rate

The differences between the provision for income taxes and income taxes computed using the federal statutory rate for the years ended December 31, 2014 and 2013 are as follows (in thousands):

	2014			2013
Reconciliation of income tax benefit to statutory rate:
Income tax (benefit) at statutory rate	$	(93	)	$	212
State income taxes, net of federal income tax benefit	49			4
RTP (ISO expense)	508			—
Permanent differences	13			8
True-up prior year NOL	—			(8		)
Change in valuation allowance	(718		)	2,405
Change in state tax rate	241			(2,605		)
Other	—			(16		)
	$	—		$	—