CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	30,000,000	30,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued	8,245,506	8,223,077
Common stock, shares outstanding	7,954,523	7,932,094
Treasury stock, shares	290,983	290,983