Fair Value of Assets and Liabilities - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Securities available for sale
Securities available for sale	$ 189,733	$ 214,910
Recurring
Securities available for sale
Securities available for sale	189,733	214,910
Loans held for sale	90,500	41,895
Total assets measured at fair value	283,778	259,337
Liabilities:
Derivatives	2,632	1,607
Recurring \| Cash flow hedges
Securities available for sale
Derivatives		289
Liabilities:
Derivatives	145
Recurring \| IRLC
Securities available for sale
Derivatives	1,083	636
Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	2,462	1,607
Liabilities:
Derivatives	2,462	1,607
Recurring \| Forward sales of TBA securities
Liabilities:
Derivatives	25
Level 2 \| Recurring
Securities available for sale
Securities available for sale	189,733	214,910
Loans held for sale	90,500	41,895
Total assets measured at fair value	283,778	259,337
Liabilities:
Derivatives	2,632	1,607
Level 2 \| Recurring \| Cash flow hedges
Securities available for sale
Derivatives		289
Liabilities:
Derivatives	145
Level 2 \| Recurring \| IRLC
Securities available for sale
Derivatives	1,083	636
Level 2 \| Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	2,462	1,607
Liabilities:
Derivatives	2,462	1,607
Level 2 \| Recurring \| Forward sales of TBA securities
Liabilities:
Derivatives	25
U.S. government agencies and corporations
Securities available for sale
Securities available for sale	21,440	17,473
U.S. government agencies and corporations \| Recurring
Securities available for sale
Securities available for sale	21,440	17,473
U.S. government agencies and corporations \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	21,440	17,473
Mortgage-backed securities
Securities available for sale
Securities available for sale	86,585	104,983
Mortgage-backed securities \| Recurring
Securities available for sale
Securities available for sale	86,585	104,983
Mortgage-backed securities \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	86,585	104,983
Obligations of states and political subdivisions
Securities available for sale
Securities available for sale	81,708	92,454
Obligations of states and political subdivisions \| Recurring
Securities available for sale
Securities available for sale	81,708	92,454
Obligations of states and political subdivisions \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	$ 81,708	$ 92,454

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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