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Note 13 - Major Customers and Vendors | 3 Months Ended
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Mar. 31, 2025
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | 13. Major Customers and Vendors: ​ The Company had one major vendor that accounted for 13% of total purchases during the three months ended March 31, 2025, and 16% of total purchases during the three months ended March 31, 2024. ​ The Company had two major customers that accounted for 26% and 13%% of net sales during the three months ended March 31, 2025, and 20% and 15%, of net sales during the three months ended March 31, 2024. These same customers accounted for 23% and 5% of total net accounts receivable as of March 31, 2025, and 16% of total net accounts receivable as of December 31, 2024.

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