Note 15 - Contested Solicitation Of Proxies and Change In Control Payments - Letter Agreement Incurred (Details) - USD ($)
3 Months Ended 9 Months Ended
Nov. 30, 2021
Nov. 30, 2021
Accelerated restricted stock unit compensation expense: $ 525,000  
Letter Agreement [Member] | President and Chief Executive Officer [Member]    
Accrued severance compensation   $ 1,344,813
Total   1,869,813
Letter Agreement [Member] | President and Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member]    
Accelerated restricted stock unit compensation expense:   $ 525,000