Fair Value of Assets and Liabilities - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Securities available for sale
Securities available for sale	$ 286,389	$ 189,733
Interest rate swaps on loans \| Cash flow hedges
Liabilities:
Derivatives	1,882	145
Recurring
Securities available for sale
Securities available for sale	286,389	189,733
Loans held for sale	214,266	90,500
Total assets measured at fair value	513,422	283,778
Liabilities:
Derivatives	10,114	2,632
Recurring \| Cash flow hedges
Liabilities:
Derivatives	1,882	145
Recurring \| IRLC
Securities available for sale
Derivatives	4,582	1,083
Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	8,185	2,462
Liabilities:
Derivatives	8,185	2,462
Recurring \| Forward sales of TBA securities
Liabilities:
Derivatives	47	25
Level 2 \| Recurring
Securities available for sale
Securities available for sale	286,389	189,733
Loans held for sale	214,266	90,500
Total assets measured at fair value	513,422	283,778
Liabilities:
Derivatives	10,114	2,632
Level 2 \| Recurring \| Cash flow hedges
Liabilities:
Derivatives	1,882	145
Level 2 \| Recurring \| IRLC
Securities available for sale
Derivatives	4,582	1,083
Level 2 \| Recurring \| Interest rate swaps on loans
Securities available for sale
Derivatives	8,185	2,462
Liabilities:
Derivatives	8,185	2,462
Level 2 \| Recurring \| Forward sales of TBA securities
Liabilities:
Derivatives	47	25
U.S. government agencies and corporations
Securities available for sale
Securities available for sale	48,282	21,440
U.S. government agencies and corporations \| Recurring
Securities available for sale
Securities available for sale	48,282	21,440
U.S. government agencies and corporations \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	48,282	21,440
Mortgage-backed securities
Securities available for sale
Securities available for sale	123,714	86,585
Mortgage-backed securities \| Recurring
Securities available for sale
Securities available for sale	123,714	86,585
Mortgage-backed securities \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	123,714	86,585
Obligations of states and political subdivisions
Securities available for sale
Securities available for sale	102,805	81,708
Obligations of states and political subdivisions \| Recurring
Securities available for sale
Securities available for sale	102,805	81,708
Obligations of states and political subdivisions \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	102,805	$ 81,708
Corporate and other debt securities
Securities available for sale
Securities available for sale	11,588
Corporate and other debt securities \| Recurring
Securities available for sale
Securities available for sale	11,588
Corporate and other debt securities \| Level 2 \| Recurring
Securities available for sale
Securities available for sale	$ 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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