SECURITIES - Available-for-sale Securities With Unrealized Loss Positions (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	$ 499,000	$ 22,261,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,000)	(133,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	350,195,000	371,320,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(39,849,000)	(49,431,000)
Available-for-sale securities with unrealized loss positions, fair value	350,694,000	393,581,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(39,850,000)	(49,564,000)
Obligations of the U.S. Treasury
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	0
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	7,321,000	11,290,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(751,000)	(1,035,000)
Available-for-sale securities with unrealized loss positions, fair value	7,321,000	11,290,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(751,000)	(1,035,000)
Obligations of U.S. Government agencies
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	1,595,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	(9,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	9,376,000	8,351,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(895,000)	(1,164,000)
Available-for-sale securities with unrealized loss positions, fair value	9,376,000	9,946,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(895,000)	(1,173,000)
Bank holding company debt securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	0
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	23,949,000	23,500,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(5,007,000)	(5,452,000)
Available-for-sale securities with unrealized loss positions, fair value	23,949,000	23,500,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(5,007,000)	(5,452,000)
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	499,000	3,257,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,000)	(24,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	96,678,000	96,758,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(8,498,000)	(9,552,000)
Available-for-sale securities with unrealized loss positions, fair value	97,177,000	100,015,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(8,499,000)	(9,576,000)
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	0
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	45,475,000	49,961,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(6,748,000)	(8,609,000)
Available-for-sale securities with unrealized loss positions, fair value	45,475,000	49,961,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(6,748,000)	(8,609,000)
Residential Passthrough Securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	3,334,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	(27,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	74,328,000	84,297,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(7,740,000)	(10,157,000)
Available-for-sale securities with unrealized loss positions, fair value	74,328,000	87,631,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(7,740,000)	(10,184,000)
Residential Collateralized Mortgage Obligations
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	3,588,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	(2,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	29,050,000	32,808,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(2,883,000)	(3,748,000)
Available-for-sale securities with unrealized loss positions, fair value	29,050,000	36,396,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(2,883,000)	(3,750,000)
Commercial Mortgage Backed Securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	0	2,327,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	0	(16,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	64,018,000	64,355,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(7,327,000)	(9,714,000)
Available-for-sale securities with unrealized loss positions, fair value	64,018,000	66,682,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	$ (7,327,000)	(9,730,000)
Private label commercial mortgage-backed securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value		8,160,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses		(55,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value		0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses		0
Available-for-sale securities with unrealized loss positions, fair value		8,160,000
Available-for-sale securities, with unrealized loss positions, unrealized losses		$ (55,000)