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v3.22.2.2

Note 16 - Debt (Details Textual) - USD ($) |  | 12 Months Ended
--- | --- | ---
Apr. 26, 2022 | Jun. 30, 2022 | Jun. 30, 2021
Amortization of Debt Issuance Costs and Discounts, Total |  | $ 34,675 | $ 0
Unsecured Convertible Debenture [Member] |  |  |
Debt Instrument, Face Amount | $ 20,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00% |  |
Debt Instrument, Interest Paid in Cash, Percentage | 6.00% |  |
Debt Instrument, Interest Paid in Shares, Percentage | 2.00% |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 30.50 |  |
Debt Instrument, Convertible, Number of Equity Instruments | 655,738 |  |
Debt Instrument, Covenant, Redeemable, Percentage of Par | 105.00% |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger | 130.00% |  |
Debt Instrument, Redeemable, Percentage of Par For First Three Years | 130.00% |  |
Debt Instrument, Redeemable, Percentage of Par after Three Years | 115.00% |  |
Debt Instrument, Fee Percentage | 3.00% |  |
Share Price (in dollars per share) | $ 24.82 |  |
Stock Issued During Period, Shares, Debt Establishment Fee (in shares) | 24,174 |  |
Investor Right Agreement, Ownership Percentage | 5.00% |  |
Investor Right Agreement, Maximum Percentage of Shares Transferable without Notifying in Advance | 0.50% |  |
Debt Instrument, Unamortized Discount (Premium), Net, Total | $ 600,000 | 600,000 |
Debt Issuance Costs, Net, Total | $ 200,000 | 200,000 |
Long-Term Debt, Total |  | 19,200,000 |
Interest Expense, Debt, Total |  | 300,000 |
Interest Expense, Debt, Excluding Amortization |  | 289,000 |
Amortization of Debt Issuance Costs and Discounts, Total |  | $ 35,000 |
Debt Instrument, Interest Rate, Effective Percentage | 8.00% | 1.00% |
Unsecured Convertible Debenture [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Debt Instrument, Fair Value Disclosure, Total |  | $ 20,000,000.0 |

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