Fair Value Measurements - Mortgage Servicing Rights - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Available for sale debt securities	$ 286,754	$ 310,870
Loans held for sale	909	2,249
Mortgage servicing rights	2,639	2,659
U.S. Treasury
Assets:
Available for sale debt securities	3,145	3,917
U.S. government-sponsored enterprises
Assets:
Available for sale debt securities	25,265	26,372
Obligations of states and political subdivisions
Assets:
Available for sale debt securities	120,434	129,224
Mortgage-backed securities
Assets:
Available for sale debt securities	123,848	136,466
Other debt securities
Assets:
Available for sale debt securities	11,821	12,284
Bank issued trust preferred securities
Assets:
Available for sale debt securities	1,266	1,288
Level 1
Assets:
Available for sale debt securities	3,145	3,917
Loans held for sale	0	0
Total	64,658	175,700
Liabilities:
Total	1,208,201	1,295,535
Level 2
Assets:
Available for sale debt securities	283,609	306,953
Loans held for sale	909	2,249
Total	292,497	317,071
Liabilities:
Total	119,530	121,060
Level 3
Assets:
Available for sale debt securities	0	0
Loans held for sale	0	0
Total	1,327,032	1,308,851
Liabilities:
Total	252,925	246,051
Recurring
Assets:
Loans held for sale	909	2,249
Mortgage servicing rights	2,639	2,659
Total	290,443	316,162
Liabilities:
Total	47	26
Recurring \| U.S. Treasury
Assets:
Available for sale debt securities	3,145	3,917
Recurring \| U.S. government and federal agency obligations
Assets:
Available for sale debt securities	975	1,319
Recurring \| U.S. government-sponsored enterprises
Assets:
Available for sale debt securities	25,265	26,372
Recurring \| Obligations of states and political subdivisions
Assets:
Available for sale debt securities	120,434	129,224
Recurring \| Mortgage-backed securities
Assets:
Available for sale debt securities	123,848	136,466
Recurring \| Other debt securities
Assets:
Available for sale debt securities	11,821	12,284
Recurring \| Bank issued trust preferred securities
Assets:
Available for sale debt securities	1,266	1,288
Recurring \| Equity securities
Assets:
Available for sale debt securities	56	60
Recurring \| Interest rate lock commitments
Assets:
Commitments	64	312
Liabilities:
Interest rate lock commitments	47	26
Recurring \| Forward sale commitments
Assets:
Commitments	21	12
Recurring \| Level 1
Assets:
Loans held for sale	0	0
Mortgage servicing rights	0	0
Total	3,201	3,977
Liabilities:
Total	0	0
Recurring \| Level 1 \| U.S. Treasury
Assets:
Available for sale debt securities	3,145	3,917
Recurring \| Level 1 \| U.S. government and federal agency obligations
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| U.S. government-sponsored enterprises
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| Obligations of states and political subdivisions
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| Mortgage-backed securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| Other debt securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| Bank issued trust preferred securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 1 \| Equity securities
Assets:
Available for sale debt securities	56	60
Recurring \| Level 1 \| Interest rate lock commitments
Assets:
Commitments	0	0
Liabilities:
Interest rate lock commitments	0	0
Recurring \| Level 1 \| Forward sale commitments
Assets:
Commitments	0	0
Recurring \| Level 2
Assets:
Loans held for sale	909	2,249
Mortgage servicing rights	0	0
Total	284,539	309,214
Liabilities:
Total	0	0
Recurring \| Level 2 \| U.S. Treasury
Assets:
Available for sale debt securities	0	0
Recurring \| Level 2 \| U.S. government and federal agency obligations
Assets:
Available for sale debt securities	975	1,319
Recurring \| Level 2 \| U.S. government-sponsored enterprises
Assets:
Available for sale debt securities	25,265	26,372
Recurring \| Level 2 \| Obligations of states and political subdivisions
Assets:
Available for sale debt securities	120,434	129,224
Recurring \| Level 2 \| Mortgage-backed securities
Assets:
Available for sale debt securities	123,848	136,466
Recurring \| Level 2 \| Other debt securities
Assets:
Available for sale debt securities	11,821	12,284
Recurring \| Level 2 \| Bank issued trust preferred securities
Assets:
Available for sale debt securities	1,266	1,288
Recurring \| Level 2 \| Equity securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 2 \| Interest rate lock commitments
Assets:
Commitments	0	0
Liabilities:
Interest rate lock commitments	0	0
Recurring \| Level 2 \| Forward sale commitments
Assets:
Commitments	21	12
Recurring \| Level 3
Assets:
Loans held for sale	0	0
Mortgage servicing rights	2,639	2,659
Total	2,703	2,971
Liabilities:
Total	47	26
Recurring \| Level 3 \| U.S. Treasury
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| U.S. government and federal agency obligations
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| U.S. government-sponsored enterprises
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Obligations of states and political subdivisions
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Mortgage-backed securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Other debt securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Bank issued trust preferred securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Equity securities
Assets:
Available for sale debt securities	0	0
Recurring \| Level 3 \| Interest rate lock commitments
Assets:
Commitments	64	312
Liabilities:
Interest rate lock commitments	47	26
Recurring \| Level 3 \| Forward sale commitments
Assets:
Commitments	$ 0	$ 0

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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