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Note 4 - Supplemental Information (Tables) | 3 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | June 30, 2025 |  |  | March 31, 2025 |
Raw materials |  | $ | 16,089 |  |  | $ | 14,775 |
Work in process |  |  | 626 |  |  |  | 560 |
Finished goods |  |  | 11,391 |  |  |  | 10,030 |
Total inventories |  | $ | 28,106 |  |  | $ | 25,365 |
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] |
|  | June 30, 2025 |  |  | March 31, 2025 |
Prepaid expenses |  | $ | 4,302 |  |  | $ | 2,364 |
Deposits |  |  | 1,732 |  |  |  | 1,752 |
Prepaid income taxes |  |  | 465 |  |  |  | 1,040 |
Other current assets |  |  | 3,306 |  |  |  | 2,873 |
Total prepaid expenses and other current assets |  | $ | 9,805 |  |  | $ | 8,029 |
Schedule of Employee Related Liabilities [Table Text Block] |
|  | June 30, 2025 |  |  | March 31, 2025 |
Wages and paid-time-off payable |  | $ | 4,013 |  |  | $ | 3,672 |
Payroll related taxes |  |  | 3,277 |  |  |  | 2,475 |
Bonus payable |  |  | 2,269 |  |  |  | 10,891 |
Other benefits payable |  |  | 867 |  |  |  | 820 |
Total accrued payroll and benefits |  | $ | 10,426 |  |  | $ | 17,858 |
Schedule of Accrued Liabilities [Table Text Block] |
|  | June 30, 2025 |  |  | March 31, 2025 |
Accrued business taxes |  | $ | 6,039 |  |  | $ | 5,996 |
Current operating lease liabilities |  |  | 3,752 |  |  |  | 3,523 |
Income taxes payable |  |  | 2,419 |  |  |  | 2,157 |
GKE acquisition holdback |  |  | - |  |  |  | 9,315 |
Other |  |  | 3,860 |  |  |  | 3,610 |
Total other accrued expenses |  | $ | 16,070 |  |  | $ | 24,601 |
Property, Plant and Equipment [Table Text Block] |
|  | Three Months Ended June 30, |
|  | 2025 |  |  | 2024 |
Depreciation expense in cost of revenues |  | $ | 810 |  |  | $ | 862 |
Depreciation expense in operating expense |  |  | 594 |  |  |  | 542 |
Total depreciation expense |  | $ | 1,404 |  |  | $ | 1,404 |

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