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Note 3 - Investment Management and Other Fees (Tables) | 9 Months Ended
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Mar. 31, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Nine Months Ended |  |  | Three Months Ended |
|  | March 31, |  |  | March 31, |
(dollars in thousands) |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
ETF advisory fees |  | $ | 10,360 |  |  | $ | 16,140 |  |  | $ | 3,142 |  |  | $ | 5,372 |
USGIF advisory fees |  |  | 1,693 |  |  |  | 2,775 |  |  |  | 558 |  |  |  | 877 |
USGIF performance fees earned (paid) |  |  | (390 | ) |  |  | 209 |  |  |  | (109 | ) |  |  | (120 | )
Total Advisory Fees |  |  | 11,663 |  |  |  | 19,124 |  |  |  | 3,591 |  |  |  | 6,129 |
USGIF administrative services fees |  |  | 101 |  |  |  | 146 |  |  |  | 33 |  |  |  | 46 |
Total Operating Revenue |  | $ | 11,764 |  |  | $ | 19,270 |  |  | $ | 3,624 |  |  | $ | 6,175 |

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