SECURITIES - Available-for-sale Securities (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Available-for-sale Securities
Allowance for credit losses	$ 0	$ 0
Available-for-sale securities, amortized cost	449,923,000	464,968,000
Available-for-sale securities, gross unrealized holding gains	263,000	351,000
Available-for-sale securities, gross unrealized holding losses	(47,806,000)	(49,564,000)
Available-for-sale debt securities, at fair value	402,380,000	415,755,000
Obligations of the U.S. Treasury
Available-for-sale Securities
Available-for-sale securities, amortized cost	8,067,000	12,325,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(949,000)	(1,035,000)
Available-for-sale debt securities, at fair value	7,118,000	11,290,000
Obligations of U.S. Government agencies
Available-for-sale Securities
Available-for-sale securities, amortized cost	10,154,000	11,119,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(1,129,000)	(1,173,000)
Available-for-sale debt securities, at fair value	9,025,000	9,946,000
Bank holding company debt securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	28,958,000	28,952,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(3,712,000)	(5,452,000)
Available-for-sale debt securities, at fair value	25,246,000	23,500,000
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities
Available-for-sale securities, amortized cost	111,995,000	113,464,000
Available-for-sale securities, gross unrealized holding gains	238,000	311,000
Available-for-sale securities, gross unrealized holding losses	(10,931,000)	(9,576,000)
Available-for-sale debt securities, at fair value	101,302,000	104,199,000
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities
Available-for-sale securities, amortized cost	51,147,000	58,720,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(8,641,000)	(8,609,000)
Available-for-sale debt securities, at fair value	42,506,000	50,111,000
Residential Passthrough Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	104,378,000	105,549,000
Available-for-sale securities, gross unrealized holding gains	6,000	40,000
Available-for-sale securities, gross unrealized holding losses	(9,970,000)	(10,184,000)
Available-for-sale debt securities, at fair value	94,414,000	95,405,000
Residential Collateralized Mortgage Obligations
Available-for-sale Securities
Available-for-sale securities, amortized cost	53,389,000	50,212,000
Available-for-sale securities, gross unrealized holding gains	10,000	0
Available-for-sale securities, gross unrealized holding losses	(3,505,000)	(3,750,000)
Available-for-sale debt securities, at fair value	49,894,000	46,462,000
Commercial Mortgage Backed Securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	73,470,000	76,412,000
Available-for-sale securities, gross unrealized holding gains	0	0
Available-for-sale securities, gross unrealized holding losses	(8,969,000)	(9,730,000)
Available-for-sale debt securities, at fair value	64,501,000	66,682,000
Private label commercial mortgage-backed securities
Available-for-sale Securities
Available-for-sale securities, amortized cost	8,365,000	8,215,000
Available-for-sale securities, gross unrealized holding gains	9,000	0
Available-for-sale securities, gross unrealized holding losses	0	(55,000)
Available-for-sale debt securities, at fair value	$ 8,374,000	$ 8,160,000