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Note 7 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Property, Plant and Equipment | $ 168 | $ 44
Net Operating Loss Carryforwards | 15,622 | 16,838
Tax Credit Carryforwards | 1,817 | 1,837
Intangible Assets | 1,231 | 1,535
Accrued Expenses, Reserves and Other | 1,838 | 1,359
Total Deferred Tax Assets | 20,676 | 21,613
Valuation Allowance for Deferred Tax Assets | (1,942) | (21,604)
Net Deferred Tax Assets | 18,734 | 9
Other | (25) | (38)
Intangible Assets | (3,856) | (3,806)
Total Deferred Tax Liabilities | (3,881) | (3,844)
Net Deferred Tax Assets (Liabilities) | $ 14,853 |
Net Deferred Tax Assets (Liabilities) |  | $ (3,835)

X
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