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Note 8 - Income Taxes - Net Deferred Tax Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred income taxes, net | $ 11,836 | $ 13,222
Deferred tax liabilities | (515) | (559)
Net Deferred Tax Assets | $ 11,321 | $ 12,663

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