CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	18,163,850	18,077,594
Common stock, shares outstanding (in shares)	16,674,374	16,588,118
Treasury stock, shares (in shares)	1,489,476	1,489,476