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Note 10 - Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Deferred tax assets: |  |
Allowance for loan losses and unearned fee income | $ 1,773 | $ 3,347
Valuation allowance on other real estate owned | 156 | 237
Defined benefit plan | 1,592 | 2,730
Deferred compensation and other liabilities | 863 | 1,336
Discount accretion of securities |  | 15
Net unrealized loss on securities available for sale | 984 | 1,932
Total deferred tax assets | 5,368 | 9,597
Deferred tax liabilities: |  |
Fixed assets | (388) | (620)
Deposit intangibles | (1,059) | (1,573)
Defined benefit plan, prepaid portion | (1,579) | (1,345)
Discount accretion of securities | (2) |
Total deferred tax liabilities | (3,028) | (3,538)
Net deferred tax assets | $ 2,340 | $ 6,059

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