SECURITIES - Available-for-sale Securities (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Available-for-sale Securities
Allowance for credit losses	$ 0	$ 0
Available-for-sale securities, amortized cost	450,837,000	449,923,000
Available-for-sale securities, gross unrealized holding gains	445,000	263,000
Available-for-sale securities, gross unrealized holding losses	(42,819,000)	(47,806,000)
Available-for-sale debt securities, at fair value	408,463,000	402,380,000
Obligations of the U.S. Treasury
Available-for-sale Securities
Available-for-sale securities, amortized cost	8,062,000	8,067,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(778,000)	(949,000)
Available-for-sale debt securities, at fair value	7,284,000	7,118,000
Obligations of U.S. Government agencies
Available-for-sale Securities
Available-for-sale securities, amortized cost	9,819,000	10,154,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(896,000)	(1,129,000)
Available-for-sale debt securities, at fair value	8,923,000	9,025,000
Bank holding company debt securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	28,959,000	28,958,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(3,015,000)	(3,712,000)
Available-for-sale debt securities, at fair value	25,944,000	25,246,000
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities
Available-for-sale securities, amortized cost	110,721,000	111,995,000
Available-for-sale securities, gross unrealized holding gains	197,000	238,000
Available-for-sale securities, gross unrealized holding losses	(11,770,000)	(10,931,000)
Available-for-sale debt securities, at fair value	99,148,000	101,302,000
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities
Available-for-sale securities, amortized cost	51,075,000	51,147,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(7,488,000)	(8,641,000)
Available-for-sale debt securities, at fair value	43,587,000	42,506,000
Residential Passthrough Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	105,642,000	104,378,000
Available-for-sale securities, gross unrealized holding gains	112,000	6,000
Available-for-sale securities, gross unrealized holding losses	(8,277,000)	(9,970,000)
Available-for-sale debt securities, at fair value	97,477,000	94,414,000
Residential Collateralized Mortgage Obligations
Available-for-sale Securities
Available-for-sale securities, amortized cost	54,923,000	53,389,000
Available-for-sale securities, gross unrealized holding gains	136,000	10,000
Available-for-sale securities, gross unrealized holding losses	(2,911,000)	(3,505,000)
Available-for-sale debt securities, at fair value	52,148,000	49,894,000
Commercial Mortgage Backed Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	73,232,000	73,470,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(7,679,000)	(8,969,000)
Available-for-sale debt securities, at fair value	65,553,000	64,501,000
Private label commercial mortgage-backed securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	8,404,000	8,365,000
Available-for-sale securities, gross unrealized holding gains	0	9,000
Available-for-sale securities, gross unrealized holding losses	(5,000)	0
Available-for-sale debt securities, at fair value	$ 8,399,000	$ 8,374,000