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Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Net operating loss carryforwards | $ 67,673 | $ 67,014
Intangible assets | 1,968 | 5,040
Accrual and reserves | 3,119 | 2,462
Other | 6 | 77
Total noncurrent deferred tax assets | 72,766 | 74,593
Valuation allowance | (70,066) | (74,121)
Noncurrent deferred tax assets, net of valuation allowance | 2,700 | 472
Fixed assets | 2,700 | 476
Total noncurrent deferred tax liabilities | 2,700 | 476
Net deferred income tax liability |  | $ (4)

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