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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Income Tax Disclosure [Abstract] |  |
Loans, including allowance for loan losses | $ 1,590 | $ 1,489
Net operating loss carry forwards | 326 | 383
State taxes | 414 | 398
Acquisition costs | 182 | 202
Deferred compensation arrangements | 69 | 78
Unrealized loss on investment securities available-for-sale |  | 1,295
Investments | 45 | 33
Other, net | 50 | 26
Total deferred tax assets | 2,676 | 3,904
Less valuation allowance | (326) | (383)
Total deferred tax assets, net of valuation allowance | 2,350 | 3,521
Unrealized gain on investment securities available-for-sale | 1,700 |
Premises and equipment, net of depreciation | 361 | 447
Mortgage servicing rights | 492 | 464
Prepaid expenses | 157 | 209
Intangible assets | 181 | 92
FHLB stock dividends | 6 | 56
Total deferred tax liabilities | 2,897 | 1,268
Net deferred tax asset |  | $ 2,253
Net deferred tax liability | $ (547) |

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