Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net loss	$ (3,644)us-gaap_NetIncomeLoss	$ (3,610)us-gaap_NetIncomeLoss
Available-for-sale investments
Net change in unrealized gain on available-for-sale investments	33	2
Net change in unrealized gain on available-for-sale investments	33	2
Tax provision	12us-gaap_OtherComprehensiveIncomeLossTax	1us-gaap_OtherComprehensiveIncomeLossTax
Other comprehensive income, net of tax	21	1
Comprehensive loss	$ (3,623)	$ (3,609)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities and unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification.

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Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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