Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Net Loss	$ (1,860)	$ (2,078)	$ (2,779)	$ (2,127)
Deemed capital contribution on extinguishment of preferred stock		31,480		31,480
Net income (loss) available to common stockholders	$ (1,860)	$ 29,402	$ (2,779)	$ 29,353
Denominator:
Weighted average number of common shares outstanding,	4,958,159	3,060,455	4,951,083	2,883,160
Earnings per basic share:
Net Loss	$ (0.38)	$ (0.68)	$ (0.56)	$ (0.74)
Deemed capital contribution on extinguishment of preferred stock		10.29		10.92
Net income (loss) available to common stockholders	$ (0.38)	$ 9.61	$ (0.56)	$ 10.18
Numerator:
Net Loss	$ (1,860)	$ (2,078)	$ (2,779)	$ (2,127)
Deemed capital contribution on extinguishment of preferred stock		31,480		31,480
Net income (loss) available to common stockholders	$ (1,860)	$ 29,402	$ (2,779)	$ 29,353
Denominator:
Weighted average basic shares outstanding, Weighted average effect of dilutive securities	4,958,159	3,060,455	4,951,083	2,883,160
Weighted average effect of dilutive securities
Employee stock options		1,646		684
Convertible preferred stock		123,482		259,601
Restricted stock units		7,644		3,577
Weighted average diluted shares outstanding	4,958,159	3,193,227	4,951,083	3,147,022
Earnings per diluted share:
Net Loss	$ (0.38)	$ (0.65)	$ (0.56)	$ (0.68)
Deemed capital contribution on extinguishment of preferred stock		9.86		10.00
Net income (loss) available to common stockholders	$ (0.38)	$ 9.21	$ (0.56)	$ 9.32