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v3.25.3

Note 7 - Related Party Transactions - Transactions With Related Parties (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Income | $ 1,108 | $ 1,179 | $ 2,950 | $ 3,135 |  |
Expense | (988) | (1,041) | (2,820) | (2,681) |  |
Assets | 43,284 |  | 43,284 |  | $ 43,145 |
Liabilities | 1,378 |  | 1,378 |  | $ 1,905 |
GAMCO Investors, Inc. [Member] |  |  |  |  |  |
Income | 177 | 444 | 891 | 1,293 |  |
Expense | 0 | 0 | 0 | 0 |  |
Assets |  | 35,515 |  | 35,515 |  | $ 34,242
Liabilities |  | 0 |  | 0 |  | 0
Mtron Industries Inc [Member] |  |  |  |  |  |
Income | 0 | 0 | 0 | 0 |  |
Expense | 40 | (15) | 48 | (44) |  |
Assets |  | 0 |  | 0 |  | 0
Liabilities |  | 196 |  | 196 |  | 59
Related Party [Member] |  |  |  |  |  |
Income | 177 | 444 | 891 | 1,293 |  |
Expense | $ 40 | (15) | $ 48 | (44) |  |
Assets |  | 35,515 |  | 35,515 |  | 34,242
Liabilities |  | $ 196 |  | $ 196 |  | $ 59

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