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Note 4 - Balance Sheet Information - Other Current Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Compensation $ 3,409 $ 3,715
Professional fees 815 432
Warranty costs 237 185
Customer related costs 1,120 1,093
Accrued income taxes 544 286
Other 1,698 1,767
Total $ 7,823 $ 7,478