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Note 10 - Property, Plant and Equipment | 3 Months Ended
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Jun. 30, 2022
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, 2022 and March 31, 2022 are as follows (in thousands):
|  | June 30, 2022 |  |  | March 31, 2022 |
Construction in progress - equipment |  | $ | 523 |  |  | $ | 573 |
Land |  |  | 980 |  |  |  | 980 |
Building |  |  | 5,397 |  |  |  | 5,270 |
Equipment and software |  |  | 43,737 |  |  |  | 43,668 |
Finance lease - right of use asset |  |  | 6 |  |  |  | 8 |
Furniture and fixtures |  |  | 1,505 |  |  |  | 1,379 |
Leasehold improvements |  |  | 6,648 |  |  |  | 6,634 |
Property, plant and equipment, gross |  |  | 58,796 |  |  |  | 58,512 |
Less accumulated depreciation |  |  | (45,399 | ) |  |  | (44,856 | )
Property, plant and equipment, net |  | $ | 13,397 |  |  | $ | 13,656 |
Depreciation expense was $0.7 million and $0.6 million for the three months ended June 30, 2022 and 2021, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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