Note 8 - Income Taxes (Details Textual) $ in Thousands |
6 Months Ended |
|---|---|
|
Sep. 30, 2020
USD ($)
| |
| Unrecognized Tax Benefits, Ending Balance | $ 0 |
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit | 0 |
| Unrecognized Tax Benefits, Interest on Income Taxes Accrued | $ 0 |
| Open Tax Year | 2016 2017 2018 2019 |