Note 15 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Millions |
Apr. 27, 2021
$ / shares
|
Feb. 28, 2022
$ / shares
|
Feb. 16, 2022
USD ($)
|
Nov. 30, 2021
$ / shares
|
|---|---|---|---|---|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares | $ 0.001 | $ 0.001 | $ 0.001 | |
| Reverse Stock Split [Member] | ||||
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 10 | |||
| Stock Buyback Plan [Member] | ||||
| Stock Repurchase Program, Authorized Amount | $ | $ 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 Amount of stock repurchase plan authorized. No definition available.
|
| 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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