Note 13 - Commitments and Contingencies (Details Textual) - USD ($) |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2020 |
|---|---|---|---|---|
| Housing Equity Fund Of Virginia XXIV LLC [Member] | ||||
| Contractual Obligation, Total | $ 5,000,000 | |||
| Washington Housing Initiative Impact Pool LLC [Member] | ||||
| Contractual Obligation, Total | $ 2,000,000 | |||
| Commitment Funded Balance | $ 1,500,000 | |||
| Commitment Unfunded Balance | $ 500,000 | |||
| VCDC Equity Fund 26 [Member] | ||||
| Contractual Obligation, Total | $ 2,000,000 | |||
| VCDC Equity Fund 27 [Member] | ||||
| Contractual Obligation, Total | $ 2,000,000 |