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Loans Receivable, Net - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to lend additional funds to borrowers					$ 14,000
Number of loans | loan					1
Modified loans			$ 1,100,000
Troubled debt restructured loans with accrual interest	$ 7,400,000		7,400,000		$ 7,500,000
Troubled debt restructured loans	13,200,000		13,200,000		13,900,000
Non-accrual loan total troubled debt restructurings			5,800,000		6,400,000
Specific reserves to loans accruing troubled debt restructurings	354,000		354,000		590,000
Defaulted TDR loans	0	$ 0	0	$ 0
Loans Not Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructured loans with accrual interest	994,000		994,000
Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to lend additional funds to borrowers	0		0
Commercial real estate – investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	15,100,000		15,100,000		4,600,000
Commercial real estate – owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	240,000		240,000		4,000,000
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	1,100,000		1,100,000		160,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in mortgage and consumer loans collateralized, foreclosure amount	2,700,000		2,700,000		$ 858,000
Modified loans			723,000
Financing receivable, excluding accrued interest, subsequent default	$ 140,000		140,000
Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified loans			$ 410,000

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