SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 8,850	$ 7,949	$ 16,118	$ 2,552	$ 3,806	$ 7,309	$ 12,085	$ 2,943	$ 35,469	$ 26,143	$ 19,311
Net income allocated to unvested restricted stock									(294)	(306)	(368)
Net income allocated to common shares									$ 35,175	$ 25,837	$ 18,943
Weighted average shares outstanding:
Basic									29,213	28,695	28,323
Effect of dilutive securities									332	480	464
Diluted									29,545	29,175	28,787
Basic income per common share	$ 0.30	$ 0.27	$ 0.55	$ 0.09	$ 0.13	$ 0.25	$ 0.42	$ 0.10	$ 1.20	$ 0.90	$ 0.67
Diluted income per common share	$ 0.29	$ 0.27	$ 0.54	$ 0.09	$ 0.13	$ 0.25	$ 0.41	$ 0.10	$ 1.19	$ 0.89	$ 0.66