Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Taxes

Schedule of significant components of deferred tax assets (liabilities)

Significant components of our deferred tax assets (liabilities) as of December 31, 2015 and 2014 are as follows (in thousands):

	December 31
	2015			2014
Net operating loss carryforwards	$	31,777		$	32,103
Net operating loss carryforwards of foreign subsidiaries	374			374
Book over tax depreciation	(62		)	(54		)
Stock-based compensation expense	25			10
Other	128			125
Deferred tax assets	32,242			32,558
Valuation allowance for deferred tax assets	(32,242		)	(32,558		)
Deferred tax assets, net of allowance	$	—		$	—

Reconciliation of income tax benefit to statutory tax rate

The differences between the provision for income taxes and income taxes computed using the federal statutory rate for the years ended December 31, 2015 and 2014 are as follows (in thousands):

	2015			2014
Reconciliation of income tax benefit to statutory rate:
Income benefit at statutory rate	$	(425	)	$	(93	)
State income taxes (benefit), net of federal income tax benefit	(28		)	49
RTP (ISO expense)	116			508
Permanent differences	65			13
Change in valuation allowance	(316		)	(718		)
Change in state tax rate	577			241
Other	11			—
	$	—		$	—