Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 22	$ 28
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common Stock, shares authorized	100,000,000	100,000,000
Common Stock, shares issued	34,795,372	34,225,778
Common Stock, shares outstanding	28,284,981	27,715,387
Treasury Stock, shares	6,510,391	6,510,391