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Income Taxes (Schedule Of Deferred Income Tax Assets and Liabilities) (Details) - USD ($) | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
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Income Taxes [Abstract] |  |  |
Deferred compensation | $ 491,608 | $ 479,340 |
Stock-based compensation | 117,607 | 107,499 |
Accrued expenses and reserves | 571,719 | 551,562 |
Deferred revenue | 138,665 | 176,447 |
Federal and state net operating loss carryforwards | 8,216,671 | 9,942,511 |
IRC Section 174 research and development costs | 63,855 |  |
Credit carryforwards | 169,552 | 292,155 |
Equipment and leasehold improvements | 136,294 | 122,764 |
Lease liability | 744,431 | 803,603 |
Valuation allowance | (9,906,018) | (11,671,606) | $ (10,185,605)
Total deferred income tax assets | 744,384 | 804,275 |
ROU asset | (742,386) | (803,603) |
Other | (1,998) | (672) |
Net deferred income tax assets |  |  |

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