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Note 11 - Accrued Expenses - Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Sales commissions $ 2,574 $ 2,542
Subcontracting labor 758 990
Salaries, bonuses and related benefits 17,165 14,715
Warranty accrual 1,010 1,576
Other 6,969 7,095
Accrued Liabilities, Current, Total $ 28,476 $ 26,918