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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Benefit Attributable to Our Loss from Operations

Income tax benefit attributable to our loss from operations before income taxes differs from the amounts computed by applying the U.S. federal statutory income tax rate of 34% for 2014 and 35% for 2013, as a result of the following (in thousands):

	Year ended December 31,
	2014				2013
U.S. federal income tax benefit at statutory rates	$	(3,294	)		$	(2,429	)
State income tax benefit, net of federal benefit		(296	)			(209	)
Research and experimentation credits		(171	)			(133	)
Change in tax rate		1,041				—
Deferred tax asset adjustment		2,907				—
Other		178				184
Change in valuation allowance		(365	)			2,587
	$	—			$	—

Net Deferred Tax Assets

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting and the amounts used for income tax purposes, as well as operating loss and tax credit carryforwards. The income tax effects of temporary differences and carryforwards that give rise to significant portions of the Company’s net deferred tax assets consisted of the following (in thousands):

	Year ended December 31,
	2014				2013
Deferred tax assets:
Current deferred tax assets:
Vacation accrual	$	25			$	27
Total current deferred tax assets		25				27
Valuation allowance		(25	)			(27	)
Net current deferred tax assets	$	—			$	—
Noncurrent deferred tax assets:
Net operating loss carryforwards	$	42,135			$	39,799
Charitable contribution carryforwards		410				371
Research and experimentation credits		991				820
Capitalized intangibles		741				3,351
Stock based compensation		158				454
Depreciation and amortization		2				5
Other		—				—
Total noncurrent deferred tax assets		44,437				44,800
Valuation allowance		(44,437	)			(44,800	)
Net noncurrent deferred tax assets	$	—			$	—
Deferred tax liabilities:
Current deferred tax liabilities	$	—			$	—
Noncurrent deferred tax liabilities		—				—
Net deferred tax liabilities	$	—			$	—
Net noncurrent deferred tax assets	$	—			$	—

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- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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