CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 200	$ 200
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	47,500,000	47,500,000
Common stock, shares, issued	31,220,326	29,202,826
Common stock, shares outstanding	31,220,326	29,202,826