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Note 8 - Accrued Expenses - Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Sales commissions $ 2,715 $ 2,542
Subcontracting labor 1,097 990
Salaries, bonuses and related benefits 18,651 14,715
Warranty accrual 1,227 1,576
Other 8,056 7,095
Accrued Liabilities, Current, Total $ 31,746 $ 26,918