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Loans Receivables and Allowance for Credit Losses - Narrative (Details)			9 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Oct. 01, 2021	Sep. 30, 2021	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans purchased				$ 187,000	$ 21,108,000	$ 141,412,000
Loans receivable, gross				$ 707,472,000	848,859,000
Maximum period of credit extension				18 months
Loans receivable, term to reset to FHLB rate				5 years
Allowance for credit loss	$ 9,905,000			$ 7,305,000	15,925,000	10,310,000
Period for charged off of open-end credits				180 days
Period for charged off of close-end credits				120 days
Maximum period for charged off of consumer installment loans				180 days
Interest income collected and recognized on non-accruing loans				$ 3,100,000	$ 938,000	$ 372,000
Discount to appraisal value				5.80%
Discount of appraisal value, selling costs				8.00%
Number of contract modifications				0	0	0
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit loss				$ 182,000	$ 271,000
SBA Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				29,900,000	30,000,000
Percentage of principal balance guaranteed	75.00%	75.00%	90.00%
Syndicated and Leveraged Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				5,700,000	5,700,000
Non-Accrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income collected and recognized on non-accruing loans				$ 1,300,000	255,000	$ 329,000
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of credit extension based on market value of collateral				75.00%
Loans purchased				$ 0	0
Loans receivable, gross				419,489,000	472,093,000
Allowance for credit loss	$ 5,063,000			$ 2,241,000	6,089,000	6,966,000
Multi-family Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percentage of credit extension based on market value of collateral				80.00%
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of maximum loan to value				75.00%
Loans receivable, gross				$ 3,830,000	4,266,000
Allowance for credit loss	78,000			5,000	4,000	24,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans purchased				187,000	0
Loans receivable, gross				92,215,000	106,783,000
Allowance for credit loss	1,700,000			596,000	607,000	665,000
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				59,973,000	99,688,000
Allowance for credit loss	253,000			$ 3,386,000	7,843,000	1,207,000
Consumer and Other | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable term				2 years
Consumer and Other | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable term				5 years
Consumer and Other | Unsecured Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans purchased				$ 0	15,400,000
Loans receivable, gross				20,700,000	48,500,000
Consumer and Other | HELOC Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				0	5,700,000
Construction to Permanent - CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				2,357,000	2,464,000
Allowance for credit loss	$ 41,000			$ 0	113,000	$ 10,000
Construction to Permanent - CRE | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable term				20 years
Construction to Permanent - CRE | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable term				25 years
Commercial and Industrial Loans | SBA CARES Act Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross				$ 129,000	$ 133,000

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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