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, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Net sales $ 9,477 $ 10,691 $ 30,027 $ 32,117
Less: sales returns (102) (94) (219) (236)
Product [Member]        
Net sales 9,314 10,412 29,442 31,261
Administrative Fees, Freight and Other [Member]        
Net sales $ 265 $ 373 $ 804 $ 1,092