v3.23.1

Note 3 - Net Loss Per Share - Antidilutive Securities (Details) - shares | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Total potential dilutive shares (in shares) | 69,124,717 | 33,910,681
Share-Based Payment Arrangement, Option [Member] |  |
Total potential dilutive shares (in shares) | 12,741,394 | 5,977,179
Performance Shares [Member] |  |
Total potential dilutive shares (in shares) | 31,850,000 | 3,790,755
Restricted Stock [Member] |  |
Total potential dilutive shares (in shares) | 388,750 | 0
Shares Reserved for Convertible Notes [Member] |  |
Total potential dilutive shares (in shares) | 8,215,706 | 8,213,880
Warrant [Member] |  |
Total potential dilutive shares (in shares) | 15,928,867 | 15,928,867

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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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