Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 25	$ 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	34,653,559	34,225,778
Common Stock, shares outstanding	28,143,168	27,715,387
Treasury Stock, shares	6,510,391	6,510,391