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Note 2 - Acquisition (Tables) | 9 Months Ended
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Dec. 31, 2025
Notes Tables |
Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] |
Cash and cash equivalents |  | $ | 16.2 |
Prepaid expenses and other current assets |  |  | 6.7 |
Accounts receivable |  |  | 4.1 |
Inventory |  |  | 28.4 |
Property, plant and equipment |  |  | 50.3 |
Deferred tax asset |  |  | 4.1 |
Accounts payable and accrued expenses |  |  | (10.2 | )
Debt, current and long-term |  |  | (8.8 | )
Deferred revenue |  |  | (19.8 | )
Net tangible assets/(liabilities) |  |  | 71.0 |
Backlog |  |  | 1.8 |
Customer relationships |  |  | 7.7 |
Net identifiable intangible assets/(liabilities) |  |  | 9.5 |
Goodwill |  |  | 122.2 |
Total purchase consideration |  | $ | 202.7 |
Cash and cash equivalents |  | $ | 0.4 |
Equity-method investments |  |  | 1.2 |
Prepaid expenses and other current assets |  |  | 1.7 |
Accounts receivable |  |  | 16.1 |
Inventory |  |  | 23.1 |
Property, plant, and equipment |  |  | 28.4 |
Accounts payable and accrued expenses |  |  | (5.6 | )
Deferred revenue |  |  | (5.0 | )
Deferred tax liability |  |  | (5.6 | )
Net tangible assets/(liabilities) |  |  | 54.7 |
Backlog |  |  | 0.7 |
Customer relationships |  |  | 1.3 |
Net identifiable intangible assets |  |  | 2.0 |
Goodwill |  |  | 4.7 |
Total purchase consideration |  | $ | 61.4 |
Business Combination, Pro Forma Information [Table Text Block] |
|  | Three Months Ended December 31, 2025 |  |  | Nine Months Ended December 31, 2025 |  |  | Three Months Ended December 31, 2024 |  |  | Nine Months Ended December 31, 2024 |
Net Revenue |  | $ | 85,882 |  |  | $ | 248,163 |  |  | $ | 70,190 |  |  | $ | 222,273 |
Operating income |  |  | 4,986 |  |  |  | 19,565 |  |  |  | 454 |  |  |  | 4,543 |
Net income |  | $ | 119,381 |  |  | $ | 134,171 |  |  | $ | 4,776 |  |  | $ | 12,956 |
Net income per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 2.61 |  |  | $ | 3.03 |  |  | $ | 0.12 |  |  | $ | 0.33 |
Diluted |  | $ | 2.56 |  |  | $ | 2.97 |  |  | $ | 0.11 |  |  | $ | 0.32 |
Shares - basic |  |  | 45,692 |  |  |  | 44,225 |  |  |  | 41,376 |  |  |  | 39,764 |
Shares - diluted |  |  | 46,673 |  |  |  | 45,163 |  |  |  | 42,178 |  |  |  | 40,454 |
Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member] |
Notes Tables |
Business Combination [Table Text Block] |
Cash payments | $88.3
Issuance of 2,417,142 shares of Company’s common stock | 78.5
Contingent consideration | 35.9
Total consideration | $202.7
Cash payments | $30.0
Issuance of 1,297,600 shares of Company’s common stock | 31.4
Total consideration | $61.4

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