INVESTMENT SECURITIES - INVESTMENT CATEGORY (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale debt securities
Less than 12 months Fair Value	$ 79,787	$ 30,286
Less than 12 months Unrealized Losses	(4,943)	(159)
12 months or more Fair Value	279,388	533,745
12 months or more Unrealized Losses	(12,124)	(28,921)
Total Fair Value	359,175	564,031
Total Unrealized Losses	$ (17,067)	$ (29,080)
Number of securities held	174	191
Number of securities held in an unrealized loss position	92	144
Maximum percentage of holdings of securities of any one issuer, other than the U.S. Government and its agencies	10.00%	10.00%
U.S. Treasury securities and U.S. Government agencies
Available-for-sale debt securities
Less than 12 months Fair Value	$ 49,622	$ 26,707
Less than 12 months Unrealized Losses	(1,231)	(84)
12 months or more Fair Value	179,801	380,326
12 months or more Unrealized Losses	(5,543)	(14,459)
Total Fair Value	229,423	407,033
Total Unrealized Losses	(6,774)	(14,543)
Mortgage-backed securities - residential
Available-for-sale debt securities
Less than 12 months Fair Value	29,809	1,911
Less than 12 months Unrealized Losses	(3,709)	(23)
12 months or more Fair Value	83,205	136,180
12 months or more Unrealized Losses	(5,892)	(13,439)
Total Fair Value	113,014	138,091
Total Unrealized Losses	(9,601)	(13,462)
Collateralized mortgage obligations
Available-for-sale debt securities
Less than 12 months Fair Value	356	1,668
Less than 12 months Unrealized Losses	(3)	(52)
12 months or more Fair Value	16,382	17,239
12 months or more Unrealized Losses	(689)	(1,023)
Total Fair Value	16,738	18,907
Total Unrealized Losses	$ (692)	$ (1,075)