LOANS (Narrative) (Details)	3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) loan tDR_Loan	Dec. 31, 2021 USD ($) tDR_Loan loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred loan fee and premiums, net	$ (1,400,000)				$ (100,000)
Deferred loan fee and premium, paid by customers	5,600,000			$ 5,600,000
Total Deferred Fee and Premiums	$ 4,200,000	$ 4,000,000		$ 4,200,000	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	$ 20,000,000	20,900,000		$ 20,000,000	20,900,000
Number of non-accrual delinquent loans	578,000	961,000		$ 578,000	961,000
Delinquent non-accrual loans, impairment		0			0
Reserve for delinquent non accrual loans		300,000			$ 300,000
Number of non-accrual loans, number of delinquent TDRs. | loan				0	0
Nonaccrual	6,290,000	7,631,000		$ 6,290,000	$ 7,631,000
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	$ 6,036,000		$ 8,494,000
PCI Loans, accretion interest			100,000
Reclassification to nonaccretable difference		$ 500,000
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	0.07%	0.09%		0.07%	0.09%
Nonaccrual	$ 1,100,000	$ 1,400,000		$ 1,100,000	$ 1,400,000
Increase (decrease) In loan delinquency					$ (300,000)
Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	0.36%	0.48%		0.36%	0.48%
Increase (decrease) in finance receivables				$ (1,300,000)
Number of non-accrual delinquent loans	$ 6,300,000	$ 7,600,000		6,300,000	$ 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	6,200,000	7,400,000		6,200,000	$ 7,400,000
Interest due to debt				36,000	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	100,000	300,000		100,000	$ 300,000
Interest due to debt				$ 1,000	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	(41,000)	(200,000)		$ (41,000)	(200,000)
Offset by net deferred premiums paid to purchase loans	3,000	18,000		3,000	18,000
Deferred loan fees and premiums included in deferred fees paid by SBA	44,000	200,000		44,000	200,000
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			12,000	$ 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	68.98%			68.98%
Gross loans	$ 1,202,660,000	1,115,485,000		$ 1,202,660,000	1,115,485,000
Number of non-accrual delinquent loans	0	0		0	0
Nonaccrual	$ 4,661,000	4,890,000		$ 4,661,000	4,890,000
Impaired financing receivable, recorded investment		$ 4,890,000	3,136,000		$ 4,890,000
Commercial real estate | Commercial Construction Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	7.50%	6.50%		7.50%	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	4.77%			4.77%
Gross loans	$ 83,081,000	$ 91,120,000		$ 83,081,000	$ 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	872,000		$ 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	$ 13,400,000	$ 18,900,000		$ 13,400,000	$ 18,900,000
Residential rentals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage status of loan in portfolio	16.20%			16.20%
Gross loans	$ 282,365,000	195,035,000		$ 282,365,000	195,035,000
Number of non-accrual delinquent loans	454,000	252,000		454,000	252,000
Nonaccrual	$ 1,153,000	942,000		$ 1,153,000	942,000
Impaired financing receivable, recorded investment		$ 942,000	$ 961,000		$ 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%