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Note 4 - Inventories - Summary of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Raw materials $ 12,058 $ 13,688
Work-in-process 8,330 4,626
Finished goods 8,777 6,819
Total 29,165 25,133
Inventories, net 21,995 21,300
Other long-term assets $ 7,170 $ 3,833