Quarterly report [Sections 13 or 15(d)]

Note 2 - Revenue - Net Sales by Product and Service (Details)

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Note 2 - Revenue - Net Sales by Product and Service (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Net sales $ 7,560 $ 9,477 $ 24,369 $ 30,027
Less: sales returns (47) (102) (172) (219)
Product [Member]        
Net sales 7,413 9,314 23,862 29,442
Administrative Fees, Freight and Other [Member]        
Net sales $ 194 $ 265 $ 679 $ 804