Loans and Allowance for Credit Losses (Summary of Activity in Allowance for Credit Losses) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | $ 5,170,000 | $ 6,237,000 | $ 5,133,000 | $ 6,463,000 | $ 6,463,000 |
| Charge-offs | (6,000) | (5,000) | (13,000) | (13,000) | |
| Recoveries | 5,000 | 5,000 | 10,000 | ||
| (Credit) provision | (321,000) | 39,000 | (544,000) | ||
| Balance, ending | 5,164,000 | 5,916,000 | 5,164,000 | 5,916,000 | 5,133,000 |
| Allowance for Credit Loss: Ending balance: individually evaluated | 2,000 | 2,000 | |||
| Allowance for Credit Loss: Ending balance: collectively evaluated | 5,162,000 | 5,916,000 | 5,162,000 | 5,916,000 | 5,133,000 |
| Ending balance: Gross Loans Receivable | 554,430,000 | 546,708,000 | 554,430,000 | 546,708,000 | 546,490,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 1,736,000 | 1,378,000 | 1,736,000 | 1,378,000 | 1,373,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 552,694,000 | 545,330,000 | 552,694,000 | 545,330,000 | 545,117,000 |
| Loans Receivable | 554,430,000 | 554,430,000 | 546,490,000 | ||
| Allowance for credit losses on loans | (5,164,000) | (5,916,000) | (5,164,000) | (5,916,000) | (5,133,000) |
| Deferred loan costs | 3,123,000 | 3,545,000 | 3,123,000 | 3,545,000 | 3,263,000 |
| Real Estate Loans: One-to Four-Family [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 714,000 | 504,000 | 390,000 | 532,000 | 532,000 |
| Recoveries | 2,000 | 4,000 | 5,000 | ||
| (Credit) provision | 20,000 | (33,000) | 340,000 | (64,000) | |
| Balance, ending | 734,000 | 473,000 | 734,000 | 473,000 | 390,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 734,000 | 473,000 | 734,000 | 473,000 | 390,000 |
| Ending balance: Gross Loans Receivable | 154,938,000 | 166,075,000 | 154,938,000 | 166,075,000 | 161,331,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 1,531,000 | 136,000 | 1,531,000 | 136,000 | 131,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 153,407,000 | 165,939,000 | 153,407,000 | 165,939,000 | 161,200,000 |
| Allowance for credit losses on loans | (734,000) | (473,000) | (734,000) | (473,000) | (390,000) |
| Real Estate Loans: One-to Four-Family [Member] | Construction Loans [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Loans Receivable | 0 | 0 | 0 | 0 | 0 |
| Real Estate Loans: Home Equity [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 117,000 | 249,000 | 137,000 | 213,000 | 213,000 |
| (Credit) provision | (11,000) | (33,000) | (31,000) | 3,000 | |
| Balance, ending | 106,000 | 216,000 | 106,000 | 216,000 | 137,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 106,000 | 216,000 | 106,000 | 216,000 | 137,000 |
| Ending balance: Gross Loans Receivable | 46,840,000 | 48,612,000 | 46,840,000 | 48,612,000 | 47,456,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 109,000 | 109,000 | |||
| Gross Loans Receivable: Ending balance: collectively evaluated | 46,731,000 | 48,612,000 | 46,731,000 | 48,612,000 | 47,456,000 |
| Loans Receivable | 46,840,000 | 46,840,000 | 47,456,000 | ||
| Allowance for credit losses on loans | (106,000) | (216,000) | (106,000) | (216,000) | (137,000) |
| Real Estate Loans: Commercial [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 4,197,000 | 5,004,000 | 4,171,000 | 5,231,000 | 5,231,000 |
| (Credit) provision | (30,000) | (315,000) | (4,000) | (542,000) | |
| Balance, ending | 4,167,000 | 4,689,000 | 4,167,000 | 4,689,000 | 4,171,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 4,167,000 | 4,689,000 | 4,167,000 | 4,689,000 | 4,171,000 |
| Ending balance: Gross Loans Receivable | 324,321,000 | 312,396,000 | 324,321,000 | 312,396,000 | 320,984,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 94,000 | 1,242,000 | 94,000 | 1,242,000 | 1,242,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 324,227,000 | 311,154,000 | 324,227,000 | 311,154,000 | 319,742,000 |
| Loans Receivable | 324,321,000 | 324,321,000 | 320,984,000 | ||
| Allowance for credit losses on loans | (4,167,000) | (4,689,000) | (4,167,000) | (4,689,000) | (4,171,000) |
| Real Estate Loans: Commercial [Member] | Construction Loans [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | (5,133,000) | ||||
| Balance, ending | (5,164,000) | 5,916,000 | (5,164,000) | 5,916,000 | (5,133,000) |
| Loans Receivable | 17,000,000 | 14,100,000 | 17,000,000 | 14,100,000 | 18,900,000 |
| Allowance for credit losses on loans | 5,164,000 | (5,916,000) | 5,164,000 | (5,916,000) | 5,133,000 |
| Other Loans: Commercial [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 131,000 | 467,000 | 421,000 | 471,000 | 471,000 |
| (Credit) provision | 16,000 | 56,000 | (274,000) | 52,000 | |
| Balance, ending | 147,000 | 523,000 | 147,000 | 523,000 | 421,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 147,000 | 523,000 | 147,000 | 523,000 | 421,000 |
| Ending balance: Gross Loans Receivable | 16,412,000 | 18,578,000 | 16,412,000 | 18,578,000 | 15,728,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 16,412,000 | 18,578,000 | 16,412,000 | 18,578,000 | 15,728,000 |
| Loans Receivable | 16,412,000 | 16,412,000 | 15,728,000 | ||
| Allowance for credit losses on loans | (147,000) | (523,000) | (147,000) | (523,000) | (421,000) |
| Other Loans: Consumer [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 11,000 | 13,000 | 14,000 | 16,000 | 16,000 |
| Charge-offs | (6,000) | (5,000) | (13,000) | (13,000) | (41,000) |
| Recoveries | 3,000 | 1,000 | 5,000 | ||
| (Credit) provision | 5,000 | 4,000 | 8,000 | 7,000 | |
| Balance, ending | 10,000 | 15,000 | 10,000 | 15,000 | 14,000 |
| Allowance for Credit Loss: Ending balance: individually evaluated | 2,000 | 2,000 | |||
| Allowance for Credit Loss: Ending balance: collectively evaluated | 8,000 | 15,000 | 8,000 | 15,000 | 14,000 |
| Ending balance: Gross Loans Receivable | 11,919,000 | 1,047,000 | 11,919,000 | 1,047,000 | 991,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 2,000 | 2,000 | |||
| Gross Loans Receivable: Ending balance: collectively evaluated | 11,917,000 | 1,047,000 | 11,917,000 | 1,047,000 | 991,000 |
| Loans Receivable | 11,919,000 | 11,919,000 | 991,000 | ||
| Allowance for credit losses on loans | $ (10,000) | $ (15,000) | $ (10,000) | $ (15,000) | $ (14,000) |