GOODWILL AND INTANGIBLE ASSETS - Estimated annual amortization expense of core deposit intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CDI amortization
Core deposit intangibles amortization	$ 13	$ 25	$ 61	$ 128	$ 192	$ 255	$ 321	$ 388

Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.

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