Note 13 - Income Taxes - Provision for Income Taxes (Details)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Statutory federal income tax rate 21.00% 21.00%
State Taxes, net of federal (1.00%) 7.00%
Valuation allowance (296.00%) 0.00%
Other 67.00% (18.00%)
Effective income tax rate (209.00%) 10.00%