Loans Receivable and Allowance for Credit Losses - Loans receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	$ 368,253	$ 367,050
Allowance for Credit Losses	(1,699)	(2,802)	$ (3,253)
Net Deferred Loan Costs	779	790
Loans Receivable, Net	367,333	365,038
One-to-Four Family Mortgages
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	332,659	337,056
Allowance for Credit Losses	(1,526)	(2,554)	(2,738)
Home Equity Lines of Credit
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	7,952	8,550
Allowance for Credit Losses	(45)	(57)	(60)
Construction Loans
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	9,588	8,128
Allowance for Credit Losses	(13)	(32)	(73)
Consumer Loans
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	3,699	913
Allowance for Credit Losses	(28)	(9)
Commercial Loans
Loans Receivable and Allowance for Credit Losses
Total Loans Receivable	14,355	12,403
Allowance for Credit Losses	$ (80)	$ (126)	$ (2)