Convertible Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2015

Convertible Preferred Stock.

Schedule of convertible preferred stock

	December 31, 2014
		Preferred					Common
	Preferred	Shares					Stock Issuable
	Shares	Issued and	Carrying		Liquidation		Upon
	Authorized	Outstanding	Value		Preference		Conversion
Series A redeemable convertible preferred stock	20,890,000	20,890,000	$	24,879	$	25,023	6,055,060
Series B redeemable convertible preferred stock	13,200,000	6,451,057		11,798		10,859	1,869,859
	34,090,000	27,341,057	$	36,677	$	35,882	7,924,919