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Note 21 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred tax assets: |  |  |
Net operating losses (1) | [1] | $ 20,947 | $ 22,137
Tax credit carryforwards (2) | [2] | 6,064 | 6,064
Capital loss carryforwards |  | 2,270 | 4,648
Related party deferred losses |  | 619 | 619
Charitable contribution carryforwards |  | 23 | 23
Valuation allowance |  | (45,413) | (54,155)
Total deferred tax assets |  | 13,375 | 15,175
Deferred tax liabilities |  | (12,768) | (12,739)
Net deferred tax assets |  | 607 | 2,436
Domestic Tax Authority [Member] |  |  |
Deferred tax assets: |  |  |
Tax/GAAP basis differences |  | $ 28,865 | $ 35,839
[1] | Expiration dates ranging from 2021 to 2032.
[2] | Expiration dates ranging from 2027 to 2035 and includes alternative minimum tax credit carryovers of $3.5 million that do not expire.

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