Quarterly report pursuant to Section 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
Mar. 31, 2021
Mar. 31, 2020
Net sales $ 13,469 $ 14,948
Less: sales returns (116) (147)
Product [Member]    
Net sales 12,031 14,011
Administrative Fees, Freight and Other [Member]    
Net sales $ 1,554 $ 1,084