Redeemable Convertible Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2014

Temporary Equity Disclosure [Abstract]

As of December 31, 2013, preferred stock consisted of the following (in thousands, except share data):

	Preferred Shares Authorized		Issuance Date	Preferred Shares Issued and Outstanding		Redemption Value /Liquidation Preference		Carrying Value
Seed		2,500,000	December 2006		2,500,000	$	2,000	$	2,000
Series A		9,307,692	May 2007		9,307,692		12,100		12,100
Series B		4,077,500	December 2007		3,562,500		7,125		7,125
Series B-1		5,000,000	July 2009		4,842,500		9,685		9,685
Series C		33,310,787	November 2010 and June 2011		31,836,392		23,559		23,094
Series D		34,698,793	December 2011 and November 2012		33,158,272		27,521		27,521
		88,894,772			85,207,356	$	81,990	$	81,525

- Definition

Tabular disclosure of temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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