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Fair Value of Assets and Liabilities - Nonrecurring Basis (Details) - Non recurring - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Impaired loans | $ 3,050 | $ 4,022
Foreclosed assets | 84 | 204
Servicing rights | 4,146 | 4,623
Loans held for sale |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Loans held for sale | 66,021 | 14,486
Loans held for branch sale |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Loans held for sale |  | 32,031
Impaired loans |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Net impairment | 2,107 | 2,538
Foreclosed assets |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Net impairment |  | 245
Level 2 | Loans held for sale |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Loans held for sale | 66,021 | 14,486
Level 3 |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Impaired loans | 3,050 | 4,022
Foreclosed assets | 84 | 204
Servicing rights | $ 4,146 | 4,623
Level 3 | Loans held for branch sale |  |
Fair value, assets and liabilities measured on recurring and non recurring basis |  |
Loans held for sale |  | $ 32,031

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