INVESTMENT SECURITIES AVAILABLE FOR SALE (Schedule of Securities by Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amortized Cost
Due in one year or less	$ 1,564
Due after one year through five years	17,318
Due after five years through ten years	30,254
Due after ten years
Total	49,136
Total Amortized Cost	389,424	$ 381,910
Fair Value
Due in one year or less	1,571
Due after one year through five years	17,299
Due after five years through ten years	30,197
Due after ten years
Total	49,067
Total Fair Value	390,755	377,936
Mortgage-Backed Securities-Residential [Member]
Amortized Cost
Securities not due at a single maturity	337,489
Total Amortized Cost	337,489	254,383
Fair Value
Securities not due at a single maturity	338,904
Total Fair Value	338,904	251,362
SBA Pool Securities [Member]
Amortized Cost
Securities not due at a single maturity	2,799
Total Amortized Cost	2,799	3,883
Fair Value
Securities not due at a single maturity	2,784
Total Fair Value	$ 2,784	$ 3,839