Note 2 - Inventories	12 Months Ended
Mar. 31, 2026
Notes to Financial Statements
Inventory Disclosure [Text Block]	NOTE 2 — INVENTORIES: Inventories are stated at the lower of cost or net realizable value. Cost is determined using the first-in, first-out method. As of March 31, 2026 and March 31, 2025, inventories consisted exclusively of purchased finished goods. As of March 31, 2026, inventory was valued at approximately $4,128,000 which included a valuation reserve of approximately $343,000. As of March 31, 2025, inventory was valued at approximately $4,909,000 which included a valuation reserve of approximately $354,000.

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 330
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/330/tableOfContent

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