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Note 2 - Summary of Significant Accounting Policies - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accrued bonus |  | $ 3,747 | $ 3,977
Accrued vacation payable |  | 2,328 | 2,263
Foreign currency forward contracts |  | 1,150 | 138
Finance lease liabilities | [1] | 375 |
Workers compensation reserves |  | 237 | 269
Other |  | 8,977 | 5,083
Total accrued liabilities |  | 16,814 | 12,150
Accrued Liability [Member] |  |  |
Finance lease liabilities |  | 375 | 420
Workers compensation reserves |  | $ 200 | $ 300
[1] | Current portion of finance lease liabilities are included in Accrued liabilities.

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