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Note 7 - Indebtedness (Tables) | 9 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Maturities of Long-Term Debt [Table Text Block] |
Fiscal Year |  | Amount |
Remainder of 2025 |  | $ | 937 |
2026 |  |  | 3,750 |
2027 |  |  | 5,625 |
2028 |  |  | 5,625 |
2029 |  |  | 7,500 |
Thereafter |  |  | 48,750 |
Total Principal Remaining |  | $ | 72,187 |
Convertible Debt [Table Text Block] |
|  | December 31, 2024 |  |  | March 31, 2024 |
Principal outstanding |  | $ | 97,500 |  |  | $ | 172,500 |
Unamortized debt issuance costs |  |  | (337 | ) |  |  | (1,302 | )
Net carrying value |  | $ | 97,163 |  |  | $ | 171,198 |
Interest Expense on Convertible Debt [Table Text Block] |
|  | Three Months Ended December 31, |  |  | Nine Months Ended December 31, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Coupon interest expense at 1.375% |  | $ | 335 |  |  | $ | 593 |  |  | $ | 1,037 |  |  | $ | 1,779 |
Amortization of debt issuance costs |  |  | 134 |  |  |  | 231 |  |  |  | 412 |  |  |  | 692 |
Total interest and amortization of debt issuance costs |  | $ | 469 |  |  | $ | 824 |  |  | $ | 1,449 |  |  | $ | 2,471 |
Term Loan [Member] |
Notes Tables |
Convertible Debt [Table Text Block] |
|  | December 31, 2024 |  |  | March 31, 2024 |
Term Loan (7.5% as of December 31, 2024) |  | $ | 72,187 |  |  | $ | - |
Less: discount and debt issuance costs |  |  | (634 | ) |  |  | - |
Less: current portion |  |  | (3,750 | ) |  |  | - |
Noncurrent portion |  | $ | 67,803 |  |  | $ | - |

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