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Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred tax assets: |  |
Allowance for loan and lease losses | $ 1,327 | $ 1,210
Supplemental retirement plan | 454 | 528
Investment security basis adjustment | 18 | 18
Nonaccrual interest income | 389 | 371
OREO adjustments |  | 2
Accrued compensation | 222 | 201
Other |  | 86
Gross deferred tax assets | 2,410 | 2,416
Deferred tax liabilities: |  |
Premises and equipment | 328 | 356
Net unrealized gain on securities | 1 | 347
FHLB stock dividends | 139 | 139
Intangibles | 342 | 307
Mortgage servicing rights | 75 | 71
Deferred origination fees, net | 13 | 294
Acquisition fair value adjustments | 275 | 250
Other | 5 | 5
Gross deferred tax liabilities | 1,178 | 1,769
Net deferred tax assets | $ 1,232 | $ 647

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