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COMMITMENTS AND CONTINGENCIES - Significant Off-balance Sheet Commitments (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 165,513
Commitments to originate loans: | Adjustable-rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	15,303
Commitments to originate loans: | Fixed-rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	13,627
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	2,070
Undisbursed loan funds and unused lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 134,513

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