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Note 14 - Revenue - Net Sales From Continuing Operations by Geographic Region (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Net sales $ 102,547 $ 84,643 $ 73,812 $ 72,311 $ 69,381 $ 77,632 $ 69,971 $ 68,923 $ 333,313 $ 285,907 $ 279,317
UNITED STATES                      
Net sales                 313,729 254,956 252,797
CANADA                      
Net sales                 $ 19,584 $ 30,951 $ 26,520