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INVESTMENT SECURITIES (Schedule of Securities with Unrealized Losses) (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($)
Held-to-maturity Securities
Total, Unrealized/Unrecognized Losses	$ 0
Number of securities of one issuer | item	0	0
Impairment loss	$ 0	$ 0	$ 0
Available-for-sale Securities.
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value	66,483,000	10,873,000
Less than 12 Months, Unrealized/Unrecognized Losses	(1,514,000)	(198,000)
12 months or more, Estimated Fair Value	358,156,000	380,995,000
12 months or more, Unrealized/Unrecognized Losses	(76,334,000)	(78,854,000)
Total, Estimated Fair Value	424,639,000	391,868,000
Total, Unrealized/Unrecognized Losses	(77,848,000)	(79,052,000)
Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value	366,719,000	404,252,000
12 months or more, Unrealized/Unrecognized Losses	(61,838,000)	(64,608,000)
Total, Estimated Fair Value	366,719,000	404,252,000
Total, Unrealized/Unrecognized Losses	(61,838,000)	(64,608,000)
U.S. Government agency securities | Available-for-sale Securities.
Available-for-sale Securities
12 months or more, Estimated Fair Value	63,752,000	61,775,000
12 months or more, Unrealized/Unrecognized Losses	(4,247,000)	(6,222,000)
Total, Estimated Fair Value	63,752,000	61,775,000
Total, Unrealized/Unrecognized Losses	(4,247,000)	(6,222,000)
U.S. State and Municipal securities | Available-for-sale Securities.
Available-for-sale Securities
12 months or more, Estimated Fair Value	9,500,000	9,699,000
12 months or more, Unrealized/Unrecognized Losses	(1,841,000)	(1,797,000)
Total, Estimated Fair Value	9,500,000	9,699,000
Total, Unrealized/Unrecognized Losses	(1,841,000)	(1,797,000)
U.S. State and Municipal securities | Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value	13,633,000	13,995,000
12 months or more, Unrealized/Unrecognized Losses	(1,686,000)	(1,574,000)
Total, Estimated Fair Value	13,633,000	13,995,000
Total, Unrealized/Unrecognized Losses	(1,686,000)	(1,574,000)
Residential MBS | Available-for-sale Securities.
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value	46,859,000
Less than 12 Months, Unrealized/Unrecognized Losses	(1,104,000)
12 months or more, Estimated Fair Value	258,763,000	292,970,000
12 months or more, Unrealized/Unrecognized Losses	(67,650,000)	(68,609,000)
Total, Estimated Fair Value	305,622,000	292,970,000
Total, Unrealized/Unrecognized Losses	(68,754,000)	(68,609,000)
Residential MBS | Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value	316,366,000	354,750,000
12 months or more, Unrealized/Unrecognized Losses	(58,866,000)	(60,556,000)
Total, Estimated Fair Value	316,366,000	354,750,000
Total, Unrealized/Unrecognized Losses	(58,866,000)	(60,556,000)
Commercial MBS | Available-for-sale Securities.
Available-for-sale Securities
Less than 12 Months, Estimated Fair Value	19,624,000	10,873,000
Less than 12 Months, Unrealized/Unrecognized Losses	(410,000)	(198,000)
12 months or more, Estimated Fair Value	23,504,000	13,322,000
12 months or more, Unrealized/Unrecognized Losses	(2,556,000)	(2,168,000)
Total, Estimated Fair Value	43,128,000	24,195,000
Total, Unrealized/Unrecognized Losses	(2,966,000)	(2,366,000)
Commercial MBS | Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value	7,192,000	7,024,000
12 months or more, Unrealized/Unrecognized Losses	(876,000)	(1,066,000)
Total, Estimated Fair Value	7,192,000	7,024,000
Total, Unrealized/Unrecognized Losses	(876,000)	(1,066,000)
Asset-backed Securities | Available-for-sale Securities.
Available-for-sale Securities
12 months or more, Estimated Fair Value	2,637,000	3,229,000
12 months or more, Unrealized/Unrecognized Losses	(40,000)	(58,000)
Total, Estimated Fair Value	2,637,000	3,229,000
Total, Unrealized/Unrecognized Losses	(40,000)	(58,000)
US Treasury Securities | Held-to-maturity Securities
Held-to-maturity Securities
12 months or more, Estimated Fair Value	29,528,000	28,483,000
12 months or more, Unrealized/Unrecognized Losses	(410,000)	(1,412,000)
Total, Estimated Fair Value	29,528,000	28,483,000
Total, Unrealized/Unrecognized Losses	$ (410,000)	$ (1,412,000)

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