Note 7 - Property, Plant and Equipment	6 Months Ended
Sep. 30, 2025
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	NOTE 7 — PROPERTY, PLANT AND EQUIPMENT At September 30, 2025, the Company's construction in process balance of approximately $2.3 million consisted of approximately $1.9 million associated with additional processing equipment being installed in our Granite City, IL facility. The remaining balance consists of several smaller projects among our facilities.

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.

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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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