INVESTMENT SECURITIES (Schedule of amortized cost and fair value of securities held-to-maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities
Amortized Cost	$ 460,249	$ 468,860
Total Securities	393,200	404,300
Held-to-maturity Securities
Schedule of Held-to-maturity Securities
Amortized Cost	460,249	468,860
Gross Unrealized/Unrecognized Gains		0
Gross Unrealized/Unrecognized Losses	(67,069)	(64,608)
Total Securities	393,180	404,252
Held-to-maturity Securities | US Treasury Securities
Schedule of Held-to-maturity Securities
Amortized Cost	29,906	29,895
Gross Unrealized/Unrecognized Gains		0
Gross Unrealized/Unrecognized Losses	(1,330)	(1,412)
Total Securities	28,576	28,483
Held-to-maturity Securities | U.S. State and Municipal securities
Schedule of Held-to-maturity Securities
Amortized Cost	15,507	15,569
Gross Unrealized/Unrecognized Gains		0
Gross Unrealized/Unrecognized Losses	(1,746)	(1,574)
Total Securities	13,761	13,995
Held-to-maturity Securities | Residential MBS
Schedule of Held-to-maturity Securities
Amortized Cost	406,752	415,306
Gross Unrealized/Unrecognized Gains		0
Gross Unrealized/Unrecognized Losses	(62,921)	(60,556)
Total Securities	343,831	354,750
Held-to-maturity Securities | Commercial MBS
Schedule of Held-to-maturity Securities
Amortized Cost	8,084	8,090
Gross Unrealized/Unrecognized Gains		0
Gross Unrealized/Unrecognized Losses	(1,072)	(1,066)
Total Securities	$ 7,012	$ 7,024