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Note 12 - Net Loss Per Share (Details Textual) - $ / shares | 12 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share) | $ 10.38 | $ 19.20
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share) | $ 175.50 | $ 175.50
Restricted Stock [Member] |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0 | 0
Share-Based Payment Arrangement, Option [Member] |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 38,166 | 34,284

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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