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BALANCE SHEET INFORMATION (Tables) | 12 Months Ended
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Mar. 31, 2025
Balance Sheet Related Disclosures [Abstract] |
Schedule of manufacturing inventories | Certain significant amounts included in the Company's consolidated balance sheets consist of the following (in thousands):
Manufacturing inventories | March 31,
| 2025 |  | 2024 |  |
Manufactured finished goods | $ | 10,471 |  |  | $ | 7,074 |  |  |
Work in progress | 380 |  |  | 769 |  |  |
Raw materials | 9,485 |  |  | 9,910 |  |  |
Total manufacturing inventories | $ | 20,336 |  |  | $ | 17,753 |  |  |
Schedule of service inventories |
Service inventories | March 31,
| 2025 |  | 2024 |  |
Finished goods | $ | 1,189 |  |  | $ | 3,660 |  |  |
Component parts | 909 |  |  | 6,123 |  |  |
Total service inventories | $ | 2,098 |  |  | $ | 9,783 |  |  |
Schedule of property and equipment | Property and equipment are carried at cost, less accumulated depreciation and amortization, computed on a straight-line basis over the estimated useful lives of the assets as follows:
Machinery and equipment | 3 to 5 years
Computer equipment | 3 to 5 years
Other software | 3 years
Furniture and fixtures | 5 years
Other office equipment | 5 years
Leasehold improvements | Shorter of useful life or life of lease
Property and equipment, net | March 31,
| 2025 |  | 2024 |  |
Machinery and equipment, and software | $ | 47,385 |  |  | $ | 49,095 |  |  |
Leasehold improvements | 13,529 |  |  | 12,473 |  |  |
Furniture and fixtures | 1,095 |  |  | 1,109 |  |  |
| 62,009 |  |  | 62,677 |  |  |
Less: accumulated depreciation | (50,631) |  |  | (50,649) |  |  |
Total property, plant and equipment, net | $ | 11,378 |  |  | $ | 12,028 |  |  |
Summary of carrying value of intangible assets |
Intangibles, net |  | March 31, 2025 |  | March 31, 2024 |  |
|  | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net |  |  |  |  |  |
Developed technology |  | $ | 9,013 |  |  | $ | (9,013) |  |  | $ | — |  |  | $ | 9,013 |  |  | $ | (8,550) |  |  | $ | 463 |  |  |  |  |  |  |
Customer lists |  | 4,398 |  |  | (4,117) |  |  | 281 |  |  | 4,398 |  |  | (3,192) |  |  | 1,206 |  |  |  |  |  |  |
Intangible assets, net |  | $ | 13,411 |  |  | $ | (13,130) |  |  | $ | 281 |  |  | $ | 13,411 |  |  | $ | (11,742) |  |  | $ | 1,669 |  |  |  |  |  |  |
Future expected amortization expense for intangible assets | As of March 31, 2025, the future expected amortization expense for intangible assets is as follows (in thousands):
Fiscal year ending |  | Estimated future amortization expense
Fiscal year 2026 |  | $ | 281 |
Total |  | $ | 281 |
Goodwill rollforward |
Goodwill |  | Amount
Balance at March 31, 2024 |  | $ | 12,969 |
Goodwill acquired |  | — |
Balance at March 31, 2025 |  | $ | 12,969 |
Schedule of other long-term assets |
Other long-term assets | March 31,
| 2025 |  | 2024 |  |
Capitalized SaaS implementation costs for internal use | $ | 13,910 |  |  | $ | 15,349 |  |  |
Capitalized debt costs | 2,871 |  |  | 1,923 |  |  |
Contract cost asset | 1,144 |  |  | 1,477 |  |  |
Other | 1,463 |  |  | 991 |  |  |
Total other long-term assets | $ | 19,388 |  |  | $ | 19,740 |  |  |
Schedule of other accrued liabilities |
Other accrued liabilities | March 31,
| 2025 |  | 2024 |  |
Accrued expenses | $ | 7,558 |  |  | $ | 4,251 |  |  |
Asset retirement obligation | 3,497 |  |  | 2,069 |  |  |
Accrued income taxes | 528 |  |  | 1,044 |  |  |
Accrued warranty | 1,032 |  |  | 1,545 |  |  |
Accrued interest | 350 |  |  | 524 |  |  |
Lease liability | 856 |  |  | 1,256 |  |  |
Other | 4,161 |  |  | 3,297 |  |  |
Total other accrued liabilities | $ | 17,982 |  |  | $ | 13,986 |  |  |
Schedule of accrued warranty balance | The following table details the change in the accrued warranty balance (in thousands):
| Year Ended March 31,
| 2025 |  | 2024 |  |
Balance as of April 1 | $ | 1,545 |  |  | $ | 2,094 |  |  |
Current period accruals | 2,333 |  |  | 2,563 |  |  |
Adjustments to prior estimates | 46 |  |  | (141) |  |  |
Charges incurred | (2,735) |  |  | (2,971) |  |  |
Reclassification to long-term warranty | (157) |  |  | $ | — |  |  |
Balance as of March 31 | $ | 1,032 |  |  | $ | 1,545 |  |  |

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