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Note 13 - Convertible Notes (Details Textual) - Senior Unsecured Convertible Notes [Member] $ / shares in Units, $ in Millions |  |  |  | 1 Months Ended
--- | --- | --- | --- | ---
Aug. 12, 2022 USD ($) $ / shares | Aug. 08, 2022 USD ($) $ / shares | Jul. 29, 2022 USD ($) $ / shares | Jun. 30, 2022 USD ($) shares | May 20, 2022 USD ($) $ / shares
Proceeds from Convertible Debt |  |  |  |  | $ 10
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 8.00%
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  |  |  |  | $ 3.33
Conversion Share to Common Stock, Ratio |  |  |  |  | 1
Four Affiliated Individuals [Member] |  |  |  |  |
Convertible Debt, Total |  |  |  | $ 9 |
Affiliated Individual [Member] |  |  |  |  |
Convertible Debt, Total |  |  |  | $ 1 |
Four Board Members [Member] |  |  |  |  |
Proceeds from Related Party Debt |  |  |  |  | $ 9
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  |  | 1,965,841 |
Non-affiliated Party [Member] |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  |  | 231,697 |
Non-affiliated Party [Member] | Conversion Price 6 Point 254, Maturity Date December 2026 [Member] |  |  |  |  |
Proceeds from Related Party Debt | $ 10 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00% |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares | $ 6.15 |  |  |  |
Director [Member] | Conversion Price 6 Point 254, Maturity Date December 2028 [Member] |  |  |  |  |
Proceeds from Related Party Debt |  |  | $ 5 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 8.00% |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  |  | $ 6.254 |  |
Director [Member] | Conversion Price 6 Point 15, Maturity Date December 2028 [Member] |  |  |  |  |
Proceeds from Related Party Debt |  | $ 4 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 8.00% |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  | $ 6.254 |  |  |

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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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