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v3.22.2

Note 5 - Property, Plant and Equipment (Details Textual) | 12 Months Ended |
--- | --- | ---
Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | May 25, 2021 USD ($) ft² a
Capital Expenditures, Expected Cost |  |  | $ 21,000,000
Construction in Progress, Gross | $ 15,925,306 | $ 9,614 |
Accumulated Depreciation, Depletion and Amortization, Wrote-off | 2,060,226 |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance | 26,002,820 | 30,180,893 |
Depreciation, Total | 1,320,434 | $ 1,012,917 |
Facility in Sinton, Texas [Member] |  |  |
Area of Land (Acre) | a |  |  | 26.5
Lessee, Operating Lease, Term of Contract (Year) |  |  | 99 years
Construction in Progress, Gross | 15,925,306 |  |
Payments for Construction in Process | 7,843,782 |  |
Facility in Sinton, Texas [Member] |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  | 70,000
Decatur Facility Equipment [Member] |  |  |
Proceeds from Sale of Machinery and Equipment | 160,542 |  |
Property, Plant and Equipment, Gross, Ending Balance | 3,604,209 |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance | $ 3,447,465 |  |

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