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Fair Value Measurements (Details 4) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Federal funds sold | $ 11,934 |  | $ 15,767 |  |
Interest bearing deposits with other banks | 303,157 |  | 167,261 |  |
Investment securities | 784,139 |  | 589,268 |  |
Loans held for sale | 19,254 |  | 25,096 |  |
Bank owned life insurance | 73,441 |  | 60,947 |  |
Interest bearing deposits | 593,107 |  | 420,417 |  | $ 289,122
Interest Rate Swap [Member] |  |  |  |  |
Derivative asset | 3,781 |  | 2,201 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Cash and due from banks | 6,773 |  | 7,445 |  |
Federal funds sold | 11,934 |  | 15,767 |  |
Interest bearing deposits with other banks | 303,157 |  | 167,261 |  |
Investment securities | 774,345 |  | 587,550 |  |
Federal Reserve and Federal Home Loan Bank stock | 23,506 |  | 36,324 |  |
Loans held for sale | 19,254 |  | 25,096 |  |
Bank owned life insurance | 73,441 |  | 60,947 |  |
Annuity investment | 12,417 |  | 11,632 |  |
Noninterest bearing deposits | 2,104,220 |  | 1,982,912 |  |
Interest bearing deposits | 3,542,666 |  | 3,041,563 |  |
Certificates of deposit | 1,325,209 |  | 829,886 |  |
Customer repurchase agreements | 30,413 |  | 76,561 |  |
Borrowings | 218,006 |  | 533,162 |  |
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative asset | 3,727 |  | 2,256 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Investment securities | 9,794 |  | 1,718 |  |
Loans, net | 6,921,048 | [1] | 6,381,213 | [2] |
Fair Value, Inputs, Level 3 [Member] | Mortgage Banking Derivative [Member] |  |  |  |  |
Derivative asset | 229 |  | 43 |  |
Derivative liability | 269 |  | 10 |  |
Carrying Value [Member] |  |  |  |  |
Cash and due from banks | 6,773 |  | 7,445 |  |
Federal funds sold | 11,934 |  | 15,767 |  |
Interest bearing deposits with other banks | 303,157 |  | 167,261 |  |
Investment securities | 784,139 |  | 589,268 |  |
Federal Reserve and Federal Home Loan Bank stock | 23,506 |  | 36,324 |  |
Loans held for sale | 19,254 |  | 25,096 |  |
Loans, net | 6,921,503 | [1] | 6,346,770 | [2] |
Bank owned life insurance | 73,441 |  | 60,947 |  |
Annuity investment | 12,417 |  | 11,632 |  |
Noninterest bearing deposits | 2,104,220 |  | 1,982,912 |  |
Interest bearing deposits | 3,542,666 |  | 3,041,563 |  |
Certificates of deposit | 1,327,399 |  | 829,509 |  |
Customer repurchase agreements | 30,413 |  | 76,561 |  |
Borrowings | 217,196 |  | 541,905 |  |
Carrying Value [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative asset | 3,727 |  | 2,256 |  |
Carrying Value [Member] | Mortgage Banking Derivative [Member] |  |  |  |  |
Derivative asset | 229 |  | 43 |  |
Derivative liability | 269 |  | 10 |  |
Fair Value [Member] |  |  |  |  |
Cash and due from banks | 6,773 |  | 7,445 |  |
Federal funds sold | 11,934 |  | 15,767 |  |
Interest bearing deposits with other banks | 303,157 |  | 167,261 |  |
Investment securities | 784,139 |  | 589,268 |  |
Federal Reserve and Federal Home Loan Bank stock | 23,506 |  | 36,324 |  |
Loans held for sale | 19,254 |  | 25,096 |  |
Loans, net | 6,921,048 | [1] | 6,381,213 | [2] |
Bank owned life insurance | 73,441 |  | 60,947 |  |
Annuity investment | 12,417 |  | 11,632 |  |
Noninterest bearing deposits | 2,104,220 |  | 1,982,912 |  |
Interest bearing deposits | 3,542,666 |  | 3,041,563 |  |
Certificates of deposit | 1,325,209 |  | 829,886 |  |
Customer repurchase agreements | 30,413 |  | 76,561 |  |
Borrowings | 218,006 |  | 533,162 |  |
Fair Value [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative asset | 3,727 |  | 2,256 |  |
Fair Value [Member] | Mortgage Banking Derivative [Member] |  |  |  |  |
Derivative asset | 229 |  | 43 |  |
Derivative liability | $ 269 |  | $ 10 |  |
[1] | Carrying amount is net of unearned income and the allowance for credit losses. In accordance with the prospective adoption of ASU No. 2016-01, the fair value of loans was measured using an exit price notion.
[2] | Carrying amount is net of unearned income and the allowance for credit losses. The fair value of loans was measured using an entry price notion.

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