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, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | $ 4,799,000 | $ 5,170,000 | $ 4,884,000 | $ 5,133,000 | $ 5,133,000 |
| Charge-offs | (3,000) | (6,000) | (12,000) | (13,000) | |
| Recoveries | 2,000 | 3,000 | 5,000 | ||
| Provision (credit) | (51,000) | (128,000) | 39,000 | ||
| Balance, ending | 4,747,000 | 5,164,000 | 4,747,000 | 5,164,000 | 4,884,000 |
| Allowance for Credit Loss: Ending balance: individually evaluated | 14,000 | 2,000 | 14,000 | 2,000 | 6,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 4,733,000 | 5,162,000 | 4,733,000 | 5,162,000 | 4,878,000 |
| Ending balance: Gross Loans Receivable | 560,257,000 | 554,430,000 | 560,257,000 | 554,430,000 | 557,313,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 1,400,000 | 1,736,000 | 1,400,000 | 1,736,000 | 1,644,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 558,857,000 | 552,694,000 | 558,857,000 | 552,694,000 | 555,669,000 |
| Loans Receivable | 560,257,000 | 560,257,000 | 557,313,000 | ||
| Allowance for credit losses on loans | (4,747,000) | (5,164,000) | (4,747,000) | (5,164,000) | (4,884,000) |
| Deferred loan costs | 2,807,000 | 3,123,000 | 2,807,000 | 3,123,000 | 3,012,000 |
| Real Estate Loans: One-to Four-Family [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 787,000 | 714,000 | 721,000 | 390,000 | 390,000 |
| Recoveries | 0 | 4,000 | |||
| Provision (credit) | (44,000) | 20,000 | 22,000 | 340,000 | |
| Balance, ending | 743,000 | 734,000 | 743,000 | 734,000 | 721,000 |
| Allowance for Credit Loss: Ending balance: individually evaluated | 14,000 | 14,000 | 6,000 | ||
| Allowance for Credit Loss: Ending balance: collectively evaluated | 729,000 | 734,000 | 729,000 | 734,000 | 715,000 |
| Ending balance: Gross Loans Receivable | 143,615,000 | 154,938,000 | 143,615,000 | 154,938,000 | 150,095,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 1,265,000 | 1,531,000 | 1,265,000 | 1,531,000 | 1,493,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 142,350,000 | 153,407,000 | 142,350,000 | 153,407,000 | 148,602,000 |
| Allowance for credit losses on loans | (743,000) | (734,000) | (743,000) | (734,000) | (721,000) |
| 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 | 95,000 | 117,000 | 100,000 | 137,000 | 137,000 |
| Provision (credit) | 10,000 | (11,000) | 5,000 | (31,000) | |
| Balance, ending | 105,000 | 106,000 | 105,000 | 106,000 | 100,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 105,000 | 106,000 | 105,000 | 106,000 | 100,000 |
| Ending balance: Gross Loans Receivable | 46,666,000 | 46,840,000 | 46,666,000 | 46,840,000 | 46,970,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 53,000 | 109,000 | 53,000 | 109,000 | 62,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 46,613,000 | 46,731,000 | 46,613,000 | 46,731,000 | 46,908,000 |
| Loans Receivable | 46,666,000 | 46,666,000 | 46,970,000 | ||
| Allowance for credit losses on loans | (105,000) | (106,000) | (105,000) | (106,000) | (100,000) |
| Real Estate Loans: Commercial [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 3,743,000 | 4,197,000 | 3,916,000 | 4,171,000 | 4,171,000 |
| Provision (credit) | (35,000) | (30,000) | (208,000) | (4,000) | |
| Balance, ending | 3,708,000 | 4,167,000 | 3,708,000 | 4,167,000 | 3,916,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 3,708,000 | 4,167,000 | 3,708,000 | 4,167,000 | 3,916,000 |
| Ending balance: Gross Loans Receivable | 332,314,000 | 324,321,000 | 332,314,000 | 324,321,000 | 327,352,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 82,000 | 94,000 | 82,000 | 94,000 | 89,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 332,232,000 | 324,227,000 | 332,232,000 | 324,227,000 | 327,263,000 |
| Loans Receivable | 332,314,000 | 332,314,000 | 327,352,000 | ||
| Allowance for credit losses on loans | (3,708,000) | (4,167,000) | (3,708,000) | (4,167,000) | (3,916,000) |
| Real Estate Loans: Commercial [Member] | Construction Loans [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | (4,884,000) | ||||
| Balance, ending | (4,747,000) | (5,164,000) | (4,747,000) | (5,164,000) | (4,884,000) |
| Loans Receivable | 21,100,000 | 17,000,000 | 21,100,000 | 17,000,000 | 18,800,000 |
| Allowance for credit losses on loans | 4,747,000 | 5,164,000 | 4,747,000 | 5,164,000 | 4,884,000 |
| Other Loans: Commercial [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 167,000 | 131,000 | 140,000 | 421,000 | 421,000 |
| Provision (credit) | 18,000 | 16,000 | 45,000 | (274,000) | |
| Balance, ending | 185,000 | 147,000 | 185,000 | 147,000 | 140,000 |
| Allowance for Credit Loss: Ending balance: collectively evaluated | 185,000 | 147,000 | 185,000 | 147,000 | 140,000 |
| Ending balance: Gross Loans Receivable | 22,787,000 | 16,412,000 | 22,787,000 | 16,412,000 | 17,430,000 |
| Gross Loans Receivable: Ending balance: collectively evaluated | 22,787,000 | 16,412,000 | 22,787,000 | 16,412,000 | 17,430,000 |
| Loans Receivable | 22,787,000 | 22,787,000 | 17,430,000 | ||
| Allowance for credit losses on loans | (185,000) | (147,000) | (185,000) | (147,000) | (140,000) |
| Other Loans: Consumer [Member] | |||||
| Allowance for Loan Losses [Line Items] | |||||
| Balance, beginning | 7,000 | 11,000 | 7,000 | 14,000 | 14,000 |
| Charge-offs | (3,000) | (6,000) | (12,000) | (13,000) | (30,000) |
| Recoveries | 2,000 | 3,000 | 1,000 | ||
| Provision (credit) | 5,000 | 8,000 | 8,000 | ||
| Balance, ending | 6,000 | 10,000 | 6,000 | 10,000 | 7,000 |
| Allowance for Credit Loss: Ending balance: individually evaluated | 2,000 | 2,000 | |||
| Allowance for Credit Loss: Ending balance: collectively evaluated | 6,000 | 8,000 | 6,000 | 8,000 | 7,000 |
| Ending balance: Gross Loans Receivable | 14,875,000 | 11,919,000 | 14,875,000 | 11,919,000 | 15,466,000 |
| Gross Loans Receivable: Ending balance: individually evaluated | 2,000 | 2,000 | |||
| Gross Loans Receivable: Ending balance: collectively evaluated | 14,875,000 | 11,917,000 | 14,875,000 | 11,917,000 | 15,466,000 |
| Loans Receivable | 14,875,000 | 14,875,000 | 15,466,000 | ||
| Allowance for credit losses on loans | $ (6,000) | $ (10,000) | $ (6,000) | $ (10,000) | $ (7,000) |