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Redeemable Convertible Preferred Stock	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Redeemable Convertible Preferred Stock	10. Redeemable Convertible Preferred Stock In conjunction with the issuance of the Redeemable Convertible Preferred Stock, Series A in May 2012, warrants were issued for common stock. The initial value allocated to the warrants was recognized as a discount on the Series A Convertible Preferred Stock, with a corresponding charge to additional paid-in capital. The discount related to the warrants is accreted to retained earnings through the scheduled redemption date of the redeemable Series A Convertible Preferred Stock. Discount accretion for the three months ending March 31, 2015 and 2014 totaled $12 and $11.

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- Definition

The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.

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