FAIR VALUE MEASUREMENTS - Nonrecurring - Impaired loans measured at FV (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	2,060,000		$ 1,990,000
Fair Value, Inputs, Level 1 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		0
Fair Value, Inputs, Level 2 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		0
Fair Value, Inputs, Level 3 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	2,060,000		1,990,000
Real Estate | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	1,953,000		1,990,000
Real Estate | Fair Value, Inputs, Level 1 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		0
Real Estate | Fair Value, Inputs, Level 2 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		0
Real Estate | Fair Value, Inputs, Level 3 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	1,953,000		1,990,000
Commercial and Industrial | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	107,000
Commercial and Industrial | Fair Value, Inputs, Level 1 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		0
Commercial and Industrial | Fair Value, Inputs, Level 2 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	0		$ 0
Commercial and Industrial | Fair Value, Inputs, Level 3 | Fair Value Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Individually evaluated loans	$ 107,000