CONDENSED CONSOLDIATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 561	$ 521
Preferred stock, par value (in dollars per share)
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	6,824,368	6,771,668
Common stock, shares outstanding	6,824,368	6,771,668