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Note 6 - Property, Plant and Equipment | 12 Months Ended
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Mar. 31, 2021
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | Note 6. Property, Plant and Equipment Property, plant and equipment were as follows:
|  | March 31, 2021 |  |  | March 31, 2020 |
Land |  | $ | 889 |  |  | $ | 889 |
Buildings |  |  | 18,857 |  |  |  | 18,880 |
Manufacturing equipment |  |  | 12,163 |  |  |  | 9,851 |
Computer equipment |  |  | 4,350 |  |  |  | 3,601 |
Construction in progress |  |  | 985 |  |  |  | 242 |
Other |  |  | 1,084 |  |  |  | 1,344 |
Gross total |  |  | 38,328 |  |  |  | 34,807 |
Accumulated depreciation |  |  | (16,330 | ) |  |  | (12,741 | )
Property, plant and equipment, net |  | $ | 21,998 |  |  | $ | 22,066 |
During the year ended March 31, 2021, as part of the finalization of the purchase price adjustment of GPT, we recorded an increase of $878 in the value of property, plant and equipment, net. Depreciation expense for the years ended March 31, 2021, 2020 and 2019 was $2,959, $2,234, and $2,338 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 http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://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 http://asc.fasb.org/extlink&oid=120429125&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 http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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