Note 9 - Private Offerings of Common Stock (Details Textual) - Private Placement [Member] - USD ($) |
1 Months Ended | ||
|---|---|---|---|
Dec. 10, 2021 |
Aug. 26, 2021 |
Mar. 31, 2021 |
|
| Stock Issued During Period, Shares, New Issues (in shares) | 330,666 | ||
| Sale of Stock, Price Per Share (in dollars per share) | $ 1.50 | ||
| Proceeds from Issuance of Private Placement | $ 10,000,000 | $ 2,800,000 | $ 495,999 |
| Sale of Stock, Number of Units Issued (in shares) | 3,289,526 | 1,400,000 | |
| Sale of Stock, Price per Unit (in dollars per share) | $ 3.04 | $ 2.00 | |
| Sale of Stock, Number of Common Stock in Each Unit (in shares) | 1 | ||
| Sale of Stock, Number of Warrants in Each Unit (in shares) | 1 | ||
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 4.50 | $ 3.00 | |
| Common Stock, Capital Shares Reserved for Future Issuance (in shares) | 657,933 | 1,400,000 | |
| Class of Warrant or Right, Minimum Weighted Average Price Per Share Required for Mandatory Exercise of Warrants (in dollars per share) | $ 12.50 |
| X | ||||||||||
- Definition Minimum weighted average price per share required for mandatory exercise of warrants. No definition available.
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| X | ||||||||||
- Definition Represents the sale of stock, number of common shares in each unit. No definition available.
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| X | ||||||||||
- Definition Represents sale of stock, the number of units issued. No definition available.
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| X | ||||||||||
- Definition Represents the sale of stock, number of warrants in each unit. No definition available.
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| X | ||||||||||
- Definition Represents sale of stock, price per unit. No definition available.
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| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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