EARNINGS PER SHARE (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Shares
Basic (in shares)	17,338	16,979	17,270	16,898
Effect of dilutive stock options (in shares)	382	364	333	383
Diluted (in shares)	17,720	17,343	17,603	17,281
Per Share Amount
Basic (in dollars per share)	$ 0.45	$ 0.38	$ 1.05	$ 0.92
Effect of dilutive stock options (in dollars per share)		(0.01)	(0.02)	(0.02)
Diluted (in dollars per share)	$ 0.45	$ 0.37	$ 1.03	$ 0.90
Stock options
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of diluted earnings per share (in shares)	314	687	885	645