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Note 4 - Investment Management and Other Fees (Tables) | 6 Months Ended
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Dec. 31, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Six Months Ended |  |  | Three Months Ended |
|  | December 31, |  |  | December 31, |
(dollars in thousands) |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
ETF advisory fees |  | $ | 5,171 |  |  | $ | 7,218 |  |  | $ | 2,462 |  |  | $ | 3,305 |
USGIF advisory fees |  |  | 965 |  |  |  | 1,135 |  |  |  | 459 |  |  |  | 525 |
USGIF performance fees received (paid) |  |  | (243 | ) |  |  | (281 | ) |  |  | (131 | ) |  |  | (135 | )
Total Advisory Fees |  |  | 5,893 |  |  |  | 8,072 |  |  |  | 2,790 |  |  |  | 3,695 |
USGIF administrative services fees |  |  | 58 |  |  |  | 68 |  |  |  | 28 |  |  |  | 33 |
Total Operating Revenue |  | $ | 5,951 |  |  | $ | 8,140 |  |  | $ | 2,818 |  |  | $ | 3,728 |

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