FAIR VALUE MEASUREMENTS - Nonrecurring - Impaired loans measured at FV (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2026	Dec. 31, 2025
FAIR VALUE MEASUREMENTS
Minimum impaired loan balance that requires an appraisal to be obtained and reviewed annually for impaired loan valuation procedure	$ 250,000
Maximum impaired loan balance for which the bank completes a Certificate of Inspection	250,000
Transfer in or out of Level 3	0	$ 0
Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	12,745,000	12,786,000
Fair Value, Inputs, Level 1 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	0	0
Fair Value, Inputs, Level 2 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	0	0
Fair Value, Inputs, Level 3 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	12,745,000	12,786,000
Real Estate \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	12,745,000	12,776,000
Real Estate \| Fair Value, Inputs, Level 1 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	0	0
Real Estate \| Fair Value, Inputs, Level 2 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	0	0
Real Estate \| Fair Value, Inputs, Level 3 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans	$ 12,745,000	12,776,000
Commercial and Industrial \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans		10,000
Commercial and Industrial \| Fair Value, Inputs, Level 3 \| Fair Value Measurements, Nonrecurring
FAIR VALUE MEASUREMENTS
Total individually evaluated loans		$ 10,000

The fair value of financing receivables that were individually evaluated for impairment.

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- Definition

Impaired Loan Balance that Require Annual Bank Certificate of Inspection.

+ References

No definition available.

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- Definition

Impaired Loan Balance That Requires Appraisal or Certificate of Inspection For Impaired Loan Valuation Procedure.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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-Topic 820
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- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

+ References

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