SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Calculation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Net income available to common shareholders									$ 26,192	$ 47,434	$ 44,170
Basic weighted average shares outstanding									18,896,825	19,268,870	18,965,305
Plus: common stock equivalents									184,362	142,578	183,340
Diluted weighted average shares outstanding									19,081,187	19,411,448	19,148,645
Earnings per share:
Basic	$ 0.16	$ 0.72	$ 0.44	$ 0.07	$ 0.64	$ 0.63	$ 0.59	$ 0.59	$ 1.39	$ 2.46	$ 2.33
Diluted	$ 0.16	$ 0.71	$ 0.43	$ 0.07	$ 0.64	$ 0.63	$ 0.59	$ 0.58	$ 1.37	$ 2.44	$ 2.31