Fair Value of Assets and Liabilities - Nonrecurring Basis (Details) - Non recurring - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair value, assets and liabilities measured on recurring and non recurring basis
Impaired loans	$ 2,469	$ 7,325
Foreclosed assets	885	63
Servicing rights	1,880	1,987
Loans held for sale
Fair value, assets and liabilities measured on recurring and non recurring basis
Loans held for sale	46,490	122,440
Impaired loans
Fair value, assets and liabilities measured on recurring and non recurring basis
Net impairment	283	1,205
Level 2 | Loans held for sale
Fair value, assets and liabilities measured on recurring and non recurring basis
Loans held for sale	46,490	122,440
Level 3
Fair value, assets and liabilities measured on recurring and non recurring basis
Impaired loans	2,469	7,325
Foreclosed assets	885	63
Servicing rights	$ 1,880	$ 1,987