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Note 11 - Federal Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Allowance for loan losses | $ 5,017,000 | $ 4,700,000
Deferred compensation | 577,000 | 630,000
Stock compensation | 720,000 | 660,000
Nonaccrual loan interest income | 239,000 | 297,000
Deferred loan fees | 104,000 | 185,000
Deferred Tax Assets, Capital Loss Carryforwards | 94,000 | 94,000
Fair value write-downs on foreclosed properties | 26,000 | 15,000
Unrealized loss on securities | 0 | 2,190,000
Other | 683,000 | 340,000
Deferred tax asset before valuation allowance | 7,460,000 | 9,111,000
Valuation allowance | (94,000) | (94,000)
Deferred tax asset after valuation allowance | 7,366,000 | 9,017,000
Depreciation | 1,743,000 | 1,205,000
Prepaid expenses | 269,000 | 238,000
Core deposit intangible | 787,000 | 1,142,000
Mortgage loan servicing rights | 977,000 | 932,000
Unrealized gain on securities | 982,000 | 0
Business combination adjustments | 2,058,000 | 2,054,000
Other | 485,000 | 183,000
Deferred tax liability | 7,301,000 | 5,754,000
Total net deferred tax asset | $ 65,000 | $ 3,263,000

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