LOANS (Narrative) (Details)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($)	Mar. 31, 2022 loan	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) loan tDR_Loan	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) tDR_Loan loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred loan fee and premiums, net	$ (500,000)						$ (100,000)
Deferred loan fee and premium, paid by customers	4,600,000				$ 4,600,000
Total Deferred Fee and Premiums	$ 4,100,000		$ 4,000,000		$ 4,100,000		4,000,000
Deferred loan fees and premiums include net deferred fees paid by customers			4,100,000				4,100,000
Net deferred costs			1,011,000				1,011,000
Gross loans			1,606,219,000				1,606,219,000
Service rights retained, percent of outstanding balance	0.25%				0.25%
Service rights retained, amount	$ 20,600,000		20,900,000		$ 20,600,000		20,900,000
Number of non-accrual delinquent loans	127,000		961,000		127,000		961,000
Delinquent non-accrual loans, impairment			0				0
Reserve for delinquent non accrual loans			300,000				300,000
Nonaccrual	6,235,000		7,631,000		$ 6,235,000		$ 7,631,000
Number of non-accrual loans, number of delinquent TDRs. | loan		0			0
Number of TDR loans | tDR_Loan					1		1
Specific reserves for TDR loans	$ 0		0		$ 0		$ 0
Loans added to troubled debt restructuring | loan					0		0
Purchased with credit deterioration, allowance for credit loss at acquisition					$ 0
Impaired financing receivable, recorded investment			8,494,000	$ 14,729,000		$ 14,729,000	$ 8,494,000
PCI Loans, accretion interest				100,000
Accretable yield, reclassifications (to) from nonaccretable difference			$ 500,000	15,000		15,000	$ 43,000
County First Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio			2.63%				2.63%
Gross loans			$ 42,182,000				$ 42,182,000
Purchased credit impaired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired financing receivable, recorded investment			$ 1,100,000				$ 1,100,000
Purchased credit impaired | County First Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio			0.07%				0.07%
Gross loans			$ 1,116,000				$ 1,116,000
Purchased credit impaired | County First Bank Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
New acquisition accounting for fair market value adjustment			$ 300,000				$ 300,000
Net acquisition accounting fair market value adjustment, mark			14.95%				14.95%
All Other Loans | County First Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio			2.56%				2.56%
Gross loans			$ 41,066,000				$ 41,066,000
All Other Loans | County First Bank Acquisition
Accounts, Notes, Loans and Financing Receivable [Line Items]
New acquisition accounting for fair market value adjustment			$ 800,000				$ 800,000
Net acquisition accounting fair market value adjustment, mark			1.25%				1.25%
Loan Delinquency
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.06%		0.09%		0.06%		0.09%
Increase (decrease) In loan delinquency							$ (400,000)
Nonaccrual	$ 1,000,000		$ 1,400,000		$ 1,000,000		$ 1,400,000
Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.38%		0.46%		0.38%		0.46%
Increase (decrease) in finance receivables					$ (1,400,000)
Number of non-accrual delinquent loans	$ 6,200,000		$ 7,600,000		6,200,000		$ 7,600,000
Nonaccrual Loans With No Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of non-accrual delinquent loans			6,700,000				$ 6,700,000
Percentage of current loans on total non accrual loans							87.00%
Nonaccrual	5,900,000		7,400,000		5,900,000		$ 7,400,000
Interest due to debt					21,000		100,000
Nonaccrual Loans With Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of non-accrual delinquent loans			1,000,000				$ 1,000,000
Percentage of delinquent loans on total non accrual loans							13.00%
Nonaccrual	400,000		300,000		400,000		$ 300,000
Interest due to debt					$ 3,000		1,000
Residential rentals | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					3 years
Residential rentals | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					20 years
U.S. SBA PPP
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred costs	(200,000)		(500,000)		$ (200,000)		(500,000)
Offset by net deferred premiums paid to purchase loans	18,000		41,000		18,000		41,000
Deferred loan fees and premiums included in deferred fees paid by SBA	200,000		500,000		200,000		500,000
Adjustable Rate Residential First Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 1,700,000,000		1,600,000,000		1,700,000,000		1,600,000,000
One Troubled Debt Restructuring Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of TDR loans | loan		0
Financing Receivable Troubled Debt Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR loan principal curtailment					5,000		$ 19,000
Seven Trouble Debt Restructuring Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans removed from troubled debt restructuring | loan							3
Amount of loans removed from troubled debt restructuring							$ 100,000
Commercial loans | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bank exposure, threshold limit for credit rating (or greater)					$ 1,000,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	71.33%				71.33%
Gross loans	$ 1,178,758,000		1,115,485,000		$ 1,178,758,000		1,115,485,000
Number of non-accrual delinquent loans	0		0		0		0
Nonaccrual	$ 4,702,000		4,890,000		$ 4,702,000		4,890,000
Impaired financing receivable, recorded investment			$ 4,890,000	11,772,000		11,772,000	$ 4,890,000
Commercial real estate | Commercial Construction Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	6.70%		6.50%		6.70%		6.50%
Percent of appraised value or sales price					80.00%
Residential first mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	5.13%				5.13%
Gross loans	$ 84,782,000		$ 91,120,000		$ 84,782,000		$ 91,120,000
Number of non-accrual delinquent loans			450,000				450,000
Nonaccrual			450,000				450,000
Impaired financing receivable, recorded investment			$ 866,000	879,000		879,000	$ 866,000
Residential first mortgages | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					10 years
Residential first mortgages | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					30 years
Residential first mortgages | Adjustable Rate Residential First Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.80%		1.20%		0.80%		1.20%
Gross loans	$ 13,800,000		$ 18,900,000		$ 13,800,000		$ 18,900,000
Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	12.72%				12.72%
Gross loans	$ 210,116,000		195,035,000		$ 210,116,000		195,035,000
Number of non-accrual delinquent loans	0		252,000		0		252,000
Nonaccrual	$ 981,000		942,000		$ 981,000		942,000
Impaired financing receivable, recorded investment			$ 942,000	$ 984,000		$ 984,000	$ 942,000
Residential rentals | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					3 years
Residential rentals | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt maturity period (in years)					20 years
Residential rentals | Apartment Buildings Rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent of appraised value or sales price					80.00%