Note 15 - Contested Solicitation Of Proxies and Change In Control Payments (Details Textual) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Nov. 03, 2021 |
Nov. 30, 2021 |
Nov. 30, 2020 |
Nov. 30, 2021 |
Nov. 30, 2020 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number (in shares) | 66,667 | ||||
| Restricted Stock Units (RSUs) [Member] | President and Chief Executive Officer [Member] | Letter Agreement [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number (in shares) | 66,667 | ||||
| Contested Solicitation of Proxies [Member] | |||||
| Litigation Settlement, Expense | $ 800,000 | $ 0 | $ 1,700,000 | $ 0 | |