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Investments (Summary of Unrealized Positions for Held-to-Maturity Debt Securities) (Details) - USD ($) | Jun. 30, 2023 | Jun. 30, 2022
--- | --- | ---
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost basis | $ 17,064,274 |
Gross unrealized losses | 93,740 |
Fair Value | 16,970,534 |
Short-term investments | 17,064,274 |
Investments |  | $ 0
US Treasury Securities [Member] |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost basis | 17,064,274 |
Gross unrealized losses | 93,740 |
Fair Value | $ 16,970,534 |

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- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
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