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v3.19.3.a.u2

Note 17 - Business Segments (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) MWh | Dec. 31, 2018 USD ($)
Number of Reportable Segments |  |  | 2 |
Share-based Payment Arrangement, Expense | $ 590 | $ 792 | $ 1,236 | $ 2,402
Restructuring Charges, Total | 0 | 47 | 0 | 450
Corporate, Non-Segment [Member] |  |  |  |
Share-based Payment Arrangement, Expense | $ 600 | 800 | $ 1,200 | 2,400
Restructuring Charges, Total |  | $ 100 |  | $ 500
Minimum [Member] |  |  |  |
Power of Wind Turbines | MWh |  |  | 2 |

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