XML 69 R68.htm IDEA: XBRL DOCUMENT

Income Taxes - Company's Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Current income tax expense	$ 33us-gaap_CurrentIncomeTaxExpenseBenefit	$ 18us-gaap_CurrentIncomeTaxExpenseBenefit	$ 50us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred tax benefit	(5,306)us-gaap_DeferredIncomeTaxExpenseBenefit	(3,728)us-gaap_DeferredIncomeTaxExpenseBenefit	(2,336)us-gaap_DeferredIncomeTaxExpenseBenefit
Increase in valuation allowance	5,306	3,728	2,336
Total income tax expense	$ 33us-gaap_IncomeTaxExpenseBenefit	$ 18us-gaap_IncomeTaxExpenseBenefit	$ 50us-gaap_IncomeTaxExpenseBenefit

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.