Note 1 - Description of Business (Details Textual) |
Jan. 12, 2024
$ / shares
|
Mar. 31, 2024
$ / shares
|
Dec. 31, 2023
$ / shares
|
Dec. 31, 2022
$ / shares
|
|---|---|---|---|---|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 | |
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 | ||
| Reverse Stock Split [Member] | ||||
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 100 | |||
| Series V Preferred Stock [Member] | ||||
| Preferred Stock, Convertible, Conversion Ratio | 1 | |||
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 | ||
| Series V Preferred Stock [Member] | Reverse Stock Split [Member] | ||||
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 10 |
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of common shares issuable upon conversion for each share of preferred stock to be converted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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