CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Allowance for doubtful accounts	$ 86	$ 40
Par value of common stock (in dollars per share)	$ 0	$ 0
Common Stock, shares authorized	75,000	75,000
Common Stock, shares issued	23,891	23,786
Common Stock, shares outstanding	23,786	23,786
Deferred financing costs	$ 96	$ 0
Convertible Preferred Stock
Par value of convertible preferred stock (in dollars per share)	$ 0	$ 0
Convertible preferred stock, shares authorized	39	39
Convertible preferred stock, shares reserved	39	39
Convertible preferred stock, shares issued	12	12
Convertible preferred stock, shares outstanding	12	12