CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Receivables allowance (in dollars)	$ 1,039	$ 204
Redeemable preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized shares	5,000,000	0
Preferred Stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	100,000,000	35,000,000
Common stock, issued shares	16,025,155	938,859
Common stock, outstanding shares	16,015,958	882,954
Treasury Stock, Shares	9,197	55,905
Series A preferred stock
Redeemable preferred stock, authorized shares	0	1,170,000
Redeemable preferred stock, issued shares	0	1,170,000
Redeemable preferred stock, outstanding shares	0	1,170,000
Redeemable preferred stock, liquidation preference (in dollars)		$ 5,850
Series B preferred stock
Redeemable preferred stock, authorized shares	0	4,000,000
Redeemable preferred stock, issued shares	0	3,113,099
Redeemable preferred stock, outstanding shares	0	3,113,099
Redeemable preferred stock, liquidation preference (in dollars)		$ 15,565
Series B-1 preferred stock
Redeemable preferred stock, authorized shares	0	8,830,000
Redeemable preferred stock, issued shares	0	5,461,802
Redeemable preferred stock, outstanding shares	0	5,461,802
Redeemable preferred stock, liquidation preference (in dollars)		$ 61,647
Series C preferred stock
Redeemable preferred stock, authorized shares	0	13,500,000
Redeemable preferred stock, issued shares	0	8,753,547
Redeemable preferred stock, outstanding shares	0	8,753,547
Redeemable preferred stock, liquidation preference (in dollars)		$ 43,768