SECURITIES - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
SECURITIES [Abstract]
Amortized Cost, Within 1 year	$ 545
Fair Value, Within 1 year	546
Amortized Cost, After 1 year through 5 years	10,080
Fair Value, After 1 year through 5 years	9,985
Amortized Cost, After 5 years through 10 years	12,841
Fair Value, After 5 years through 10 years	12,185
Amortized Cost, After 10 years	180,951
Fair Value, After 10 years	158,549
Amortized Cost, Declining-balance securities	433,160
Fair Value, Declining-balance securities	386,275
Amortized cost	637,577	$ 669,014
Fair value	$ 567,540	$ 577,240

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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