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Note 8 - Accrued Expenses - Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Sales commissions $ 2,503 $ 2,609
Subcontracting labor 914 1,550
Salaries, bonuses and related benefits 15,808 18,275
Warranty accrual 1,577 1,078
Other 10,267 8,778
$ 31,069 $ 32,290