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Note 9 - Property, Plant and Equipment | 12 Months Ended
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Mar. 31, 2022
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 9. Property, Plant and Equipment The cost and accumulated depreciation of property and equipment at March 31, 2022 and 2021 are as follows (in thousands):
|  | March 31, 2022 |  |  | March 31, 2021 |
Land |  | $ | 980 |  |  | $ | 270 |
Construction in progress - equipment |  |  | 573 |  |  |  | 220 |
Buildings |  |  | 5,270 |  |  |  | 1,630 |
Equipment and software |  |  | 43,668 |  |  |  | 41,652 |
Finance lease - right of use asset |  |  | 8 |  |  |  | — |
Furniture and fixtures |  |  | 1,379 |  |  |  | 1,333 |
Leasehold improvements |  |  | 6,634 |  |  |  | 6,308 |
Property, plant and equipment, gross |  |  | 58,512 |  |  |  | 51,413 |
Less accumulated depreciation |  |  | (44,856 | ) |  |  | (42,416 | )
Property, plant and equipment, net |  | $ | 13,656 |  |  | $ | 8,997 |
Depreciation expense was $2.7 million and $3.7 million, for the fiscal years ended March 31, 2022 and 2021, respectively. The increase in land and buildings relates to the property added as part of the Neeltran Acquisition.

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