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BORROWED FUNDS - Subordinated Debt (Details) - USD ($)		3 Months Ended	6 Months Ended
	May 19, 2021	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Subordinated debt, net		$ 32,967,000	$ 32,967,000	$ 16,553,000
6.25% maturing in June 2026 and redeemable at par in June 2021
Debt Instrument [Line Items]
Aggregate par value				$ 8,000,000
Stated interest rate				6.25%
Subordinated debt, net		0	0	$ 8,027,000
Effective interest rate				5.49%
6.50% maturing in April 2027 and redeemable at par in April 2022
Debt Instrument [Line Items]
Aggregate par value		$ 6,500,000	$ 6,500,000	$ 6,500,000
Stated interest rate		6.50%	6.50%	6.50%
Subordinated debt, net		$ 6,500,000	$ 6,500,000	$ 6,500,000
6.50% maturing in July 2027 and redeemable at par in July 2022
Debt Instrument [Line Items]
Aggregate par value		$ 2,000,000	$ 2,000,000	$ 2,000,000
Stated interest rate		6.50%	6.50%	6.50%
Subordinated debt, net		$ 2,017,000	$ 2,017,000	$ 2,026,000
Effective interest rate		5.60%	5.60%	5.60%
3.25% maturing in June 2031 and redeemable at par in June 2026
Debt Instrument [Line Items]
Aggregate par value	$ 25,000,000.0	$ 25,000,000	$ 25,000,000	$ 25,000,000
Stated interest rate	3.25%	3.25%	3.25%	3.25%
Debt issuance costs	$ 563,000
Subordinated debt, net	$ 24,437,000	$ 24,450,000	$ 24,450,000	$ 0
Amortization of debt issuance costs		$ 13,000	$ 13,000
Effective interest rate		3.74%	3.74%	3.74%
3.25% maturing in June 2031 and redeemable at par in June 2026 | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Stated interest rate	3.25%
Debt Instrument, Redemption Period, Start Date	May 19, 2021
Debt Instrument, Redemption Period, End Date	Jun. 01, 2026
3.25% maturing in June 2031 and redeemable at par in June 2026 | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt Instrument, Redemption Period, Start Date	Jun. 01, 2026
Debt Instrument, Redemption Period, End Date	Jun. 01, 2031
Debt Instrument, Basis Spread on Variable Rate	2.59%

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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