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Note 7 - Supplemental Balance Sheets Information | 12 Months Ended
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Mar. 31, 2023
Notes to Financial Statements |
Supplemental Balance Sheet Disclosures [Text Block] | Note 7. Supplemental Balance Sheets Information Property, plant and equipment consisted of the following:
|  | March 31, 2023 |  |  | March 31, 2022 |
Land |  | $ | 889 |  |  | $ | 889 |
Buildings and building improvements |  |  | 22,005 |  |  |  | 21,537 |
Manufacturing equipment |  |  | 14,481 |  |  |  | 17,336 |
Computer equipment |  |  | 4,413 |  |  |  | 4,519 |
Other |  |  | 4,394 |  |  |  | 1,578 |
Construction in progress |  |  | 1,735 |  |  |  | 487 |
Gross total |  |  | 47,917 |  |  |  | 46,346 |
Accumulated depreciation |  |  | (19,768 | ) |  |  | (17,726 | )
Property, plant and equipment, net |  | $ | 28,149 |  |  | $ | 28,620 |
Depreciation expense was as follows:
|  | Year Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Depreciation expense in Cost of revenues |  | $ | 3,163 |  |  | $ | 2,243 |  |  | $ | 1,859 |
Depreciation expense in Operating expense |  |  | 1,150 |  |  |  | 1,019 |  |  |  | 1,100 |
Total depreciation expense |  | $ | 4,313 |  |  | $ | 3,262 |  |  | $ | 2,959 |
Inventories consisted of the following:
|  | March 31, 2023 |  |  | March 31, 2022 |
Raw materials |  | $ | 20,064 |  |  | $ | 14,172 |
Work in process |  |  | 617 |  |  |  | 4,419 |
Finished goods |  |  | 13,961 |  |  |  | 6,015 |
Inventories, net |  | $ | 34,642 |  |  | $ | 24,606 |
Accrued payroll and benefits consisted of the following:
|  | March 31, 2023 |  |  | March 31, 2022 |
Bonus payable |  | $ | 4,461 |  |  | $ | 7,468 |
Wages and paid-time-off payable |  |  | 2,329 |  |  |  | 3,677 |
Payroll related taxes |  |  | 1,982 |  |  |  | 2,069 |
Other benefits payable |  |  | 661 |  |  |  | 1,503 |
Total accrued payroll and benefits |  | $ | 9,433 |  |  | $ | 14,717 |
Other accrued expenses consisted of the following:
|  | March 31, 2023 |  |  | March 31, 2022 |
Accrued business taxes |  | $ | 5,941 |  |  | $ | 4,967 |
Current operating lease liabilities |  |  | 2,868 |  |  |  | 2,768 |
Customer deposits |  |  | 1,287 |  |  |  | 751 |
Income taxes payable |  |  | 992 |  |  |  | 928 |
Other |  |  | 2,297 |  |  |  | 2,197 |
Total other accrued expenses |  | $ | 13,385 |  |  | $ | 11,611 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//210/tableOfContent + Details
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