INVESTMENT SECURITIES (Schedule of Amortized Cost and Fair Value of Securities Classified by Contractual Maturity) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized Cost
Amortized Cost, Held to maturity	$ 2,222	$ 2,760
Fair Value
Fair Value, Held to maturity	2,285	2,827
Amortized Cost
One to five years	47,994	37,997
Five to ten years	15,000
After ten years	16,873
Amortized Cost, total	79,867	37,997
Amortized Cost, Available-for-sale Securities	546,298	262,749
Fair Value
One to five years	47,507	37,916
Five to ten years	14,857
After ten years	16,583
Fair Value, total	78,947	37,916
Fair Value, Available-for-sale Securities	543,769	266,096
AFS securities pledged to secure customer deposit	0	0
Residential mortgage-backed securities
Amortized Cost
Amortized Cost, Held to maturity	2,222	2,760
Fair Value
Fair Value, Held to maturity	2,285	2,827
Amortized Cost
Amortized Cost, Available-for-sale Securities	442,818	192,163
Fair Value
Fair Value, Available-for-sale Securities	441,155	194,688
Commercial mortgage-backed securities
Amortized Cost
Amortized Cost, Available-for-sale Securities	18,733	32,589
Fair Value
Fair Value, Available-for-sale Securities	18,819	$ 33,492
Asset-backed Securities
Amortized Cost
Amortized Cost, Available-for-sale Securities	4,880
Fair Value
Fair Value, Available-for-sale Securities	$ 4,848