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Note 10 - Property, Plant and Equipment | 3 Months Ended
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Jun. 30, 2024
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 10. Property, Plant and Equipment The cost and accumulated depreciation of property, plant and equipment at June 30, 2024 and March 31, 2024 are as follows (in thousands):
|  | June 30, 2024 |  |  | March 31, 2024 |
Land |  | $ | 980 |  |  | $ | 980 |
Construction in progress – equipment |  |  | 291 |  |  |  | 226 |
Buildings |  |  | 5,515 |  |  |  | 5,416 |
Equipment and software |  |  | 44,159 |  |  |  | 44,095 |
Furniture and fixtures |  |  | 1,553 |  |  |  | 1,526 |
Leasehold improvements |  |  | 6,990 |  |  |  | 6,990 |
Property, plant and equipment, gross |  |  | 59,488 |  |  |  | 59,233 |
Less accumulated depreciation |  |  | (48,959 | ) |  |  | (48,372 | )
Property, plant and equipment, net |  | $ | 10,529 |  |  | $ | 10,861 |
Depreciation expense was $0.6 million for each of the three months ended June 30, 2024 and 2023, respectively.

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