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Note 16 - Private Offerings of Common Stock - Fair Value (Details) - Private Placement [Member] - USD ($) |  |  | 1 Months Ended
--- | --- | --- | ---
Dec. 10, 2021 | Aug. 26, 2021 | Aug. 31, 2022 | Mar. 31, 2021
Unregistered shares | $ 9,328,000 | $ 2,156,000 |  |
Warrants | 672,000 | 644,000 |  |
Total | 10,000,000 | 2,800,000 | $ 1,887,000 | $ 495,999
Common Stock [Member] |  |  |  |
Unregistered shares | 32,895 | 14,000 |  |
Warrants | 0 | 0 |  |
Total | 32,895 | 14,000 |  |
Additional Paid-in Capital [Member] |  |  |  |
Unregistered shares | 9,295,105 | 2,142,000 |  |
Warrants | 672,000 | 644,000 |  |
Total | $ 9,967,105 | $ 2,786,000 |  |

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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition Represents amount of proceeds from issuance of unregistered shares. + References No definition available. + Details
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