CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, allowance (in dollars)	$ 504	$ 349
Accumulated depreciation of property and equipment	$ 14,408	$ 14,810
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	5,000,000	5,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	50,000,000	50,000,000
Common stock, issued shares	12,990,402	12,854,517
Common stock, outstanding shares	11,516,875	11,386,240
Treasury stock, shares	1,473,527	1,468,277