Note 7 - Reverse Stock Split (Details Textual) |
Apr. 27, 2021
$ / shares
|
Aug. 31, 2021
$ / shares
|
Nov. 30, 2020
$ / shares
|
|---|---|---|---|
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 |
| 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
|
| 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
|
| X | ||||||||||
- Details
|