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Note 5 - Investment Management and Other Fees (Tables) | 12 Months Ended
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Jun. 30, 2022
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Year Ended June 30, |
(dollars in thousands) |  | 2022 |  |  | 2021 |
ETF advisory fees |  | $ | 20,962 |  |  | $ | 17,127 |
USGIF advisory fees |  |  | 3,543 |  |  |  | 3,836 |
USGIF performance fees earned |  |  | 20 |  |  |  | 482 |
Total Advisory Fees |  |  | 24,525 |  |  |  | 21,445 |
USGIF administrative services fees |  |  | 189 |  |  |  | 209 |
Total Operating Revenue |  | $ | 24,714 |  |  | $ | 21,654 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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