Note 1 - The Company and Description of Business (Details Textual) $ in Millions, $ in Millions |
Aug. 31, 2024
USD ($)
|
Jan. 01, 2024
USN ($)
|
Jan. 31, 2023
USD ($)
|
|---|---|---|---|
| National Institute of Aging Grant [Member] | |||
| Government Assistance, Asset | $ 0.3 | $ 21.3 | $ 21.0 |