Fair Value of Assets and Liabilities - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Securities available for sale
Securities available for sale	$ 363,413	$ 286,389
Interest rate swaps on loans \| Cash flow hedges
Liabilities:
Derivatives	960	1,882
Recurring
Securities available for sale
Securities available for sale	363,413	286,389
Loans held for sale	116,789	214,266
Total assets measured at fair value	488,083	513,422
Liabilities:
Derivatives	5,921	10,114
Recurring \| Cash flow hedges
Liabilities:
Derivatives	960	1,882
Recurring \| IRLC
Securities available for sale
Derivatives	2,875	4,582
Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	4,961	8,185
Liabilities:
Derivatives	4,961	8,185
Recurring \| Forward sales of TBA securities
Securities available for sale
Derivatives	45
Liabilities:
Derivatives		47
Level 2 \| Recurring
Securities available for sale
Securities available for sale	363,413	286,389
Loans held for sale	116,789	214,266
Total assets measured at fair value	488,083	513,422
Liabilities:
Derivatives	5,921	10,114
Level 2 \| Recurring \| Cash flow hedges
Liabilities:
Derivatives	960	1,882
Level 2 \| Recurring \| IRLC
Securities available for sale
Derivatives	2,875	4,582
Level 2 \| Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	4,961	8,185
Liabilities:
Derivatives	4,961	8,185
Level 2 \| Recurring \| Forward sales of TBA securities
Securities available for sale
Derivatives	45
Liabilities:
Derivatives		47
U.S. government agencies and corporations
Securities available for sale
Securities available for sale	62,572	48,282
U.S. government agencies and corporations \| Recurring
Securities available for sale
Securities available for sale	62,572	48,282
U.S. government agencies and corporations \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	62,572	48,282
Mortgage-backed securities
Securities available for sale
Securities available for sale	186,120	123,714
Mortgage-backed securities \| Recurring
Securities available for sale
Securities available for sale	186,120	123,714
Mortgage-backed securities \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	186,120	123,714
Obligations of states and political subdivisions
Securities available for sale
Securities available for sale	96,305	102,805
Obligations of states and political subdivisions \| Recurring
Securities available for sale
Securities available for sale	96,305	102,805
Obligations of states and political subdivisions \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	96,305	102,805
Corporate and other debt securities
Securities available for sale
Securities available for sale	18,416	11,588
Corporate and other debt securities \| Recurring
Securities available for sale
Securities available for sale	18,416	11,588
Corporate and other debt securities \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	$ 18,416	$ 11,588

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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