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Note 4 - Balance Sheet Information - Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Compensation $ 2,711 $ 3,715
Professional fees 432 432
Warranty costs 168 185
Customer related costs 1,010 1,093
Accrued income taxes 206 286
Other 2,108 1,767
Total $ 6,635 $ 7,478