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OTHER COMPREHENSIVE INCOME - Changes in the Accumulated Balances (Details) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended		12 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Changes in the accumulated balances for each component of other comprehensive income
Balance at beginning of period	$ 183,462	$ 180,051	$ 179,084	$ 180,149	$ 176,045	$ 172,821	$ 173,334	$ 179,084	$ 173,334	$ 173,334
Current year-to-date other comprehensive income	1,657				3,552			3,193	3,483	908
Balance at end of period	186,815	183,462	180,051	179,084	180,149	176,045	172,821	186,815	180,149	179,084
Other comprehensive (loss) income, net of tax	1,657	81	1,455	(2,575)	3,552	633	(702)	3,193	3,483
Unrealized Gains (Losses) on AFS Securities
Changes in the accumulated balances for each component of other comprehensive income
Balance at beginning of period			(22,753)				(24,001)	(22,753)	(24,001)	(24,001)
Current year-to-date other comprehensive income										1,248
Balance at end of period	(18,560)			(22,753)				(18,560)		(22,753)
Other comprehensive (loss) income, net of tax								4,193
Other Accumulated Comprehensive Income (Loss), net of tax
Changes in the accumulated balances for each component of other comprehensive income
Balance at beginning of period	(14,884)	(14,965)	(16,420)	(13,845)	(17,397)	(18,030)	(17,328)	(16,420)	(17,328)	(17,328)
Balance at end of period	(13,227)	(14,884)	(14,965)	(16,420)	(13,845)	(17,397)	(18,030)	$ (13,227)	$ (13,845)	$ (16,420)
Other comprehensive (loss) income, net of tax	$ 1,657	$ 81	$ 1,455	$ (2,575)	$ 3,552	$ 633	$ (702)

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