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Income Taxes - Deferred tax assets and deferred tax liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred Tax Assets |  |
Allowance for loan losses | $ 8,556 | $ 5,893
Employee compensation and benefit accruals | 2,608 | 2,542
Expense accruals | 352 | 935
Identifiable intangible amortization | 3,388 | 3,369
Deferred loan fees | 1,204 | 266
Net operating loss carry forwards | 173 | 236
Nonaccrual loan interest | 62 |
Other | 505 | 341
Total deferred tax assets from temporary differences | 16,848 | 13,582
Deferred Tax Liabilities |  |
Accumulated depreciation | 314 | 1,431
Goodwill and intangible amortization | 2,258 | 1,835
Servicing assets | 511 | 965
Prepaid expenses | 785 | 804
Unrealized loss on available-for-sale investment securities | 3,566 | 649
Other | 5 | 7
Total deferred tax liabilities from temporary differences | 7,439 | 5,691
Net Deferred Tax Assets | $ 9,409 | $ 7,891

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