EARNINGS PER SHARE (Details) - $ / shares shares in Thousands	3 Months Ended		15 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017
Shares
Basic (in shares)	17,477	17,211	17,477
Effect of dilutive stock options (in shares)	544	329
Diluted (in shares)	18,021	17,540	18,021
Per Share Amount
Basic (in dollars per share)	$ 0.28	$ 0.27	$ 0.28
Effect of dilutive stock options (in dollars per share)	(0.01)	(0.01)
Diluted (in dollars per share)	$ 0.27	$ 0.26	$ 0.27
Stock options
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of diluted earnings per share (in shares)	468		566