Fair Value Measurements - Non-recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Securities available for sale:
Non financial assets measured at fair value on a recurring basis	$ 0
Non financial liabilities measured at fair value on a recurring basis	0
Fair Value, Nonrecurring
Securities available for sale:
Fair Value, assets	29,783	$ 25,465
Fair Value, Nonrecurring | Impaired Loans
Securities available for sale:
Fair Value, assets	22,176	19,493
Fair Value, Nonrecurring | Loans Held For Sale
Securities available for sale:
Fair Value, assets	5,190	3,555
Fair Value, Nonrecurring | OREO
Securities available for sale:
Fair Value, assets	2,417	2,417
Fair Value, Nonrecurring | Level 2
Securities available for sale:
Fair Value, assets	7,607	5,972
Fair Value, Nonrecurring | Level 2 | Loans Held For Sale
Securities available for sale:
Fair Value, assets	5,190	3,555
Fair Value, Nonrecurring | Level 2 | OREO
Securities available for sale:
Fair Value, assets	2,417	2,417
Fair Value, Nonrecurring | Level 3
Securities available for sale:
Fair Value, assets	22,176	19,493
Fair Value, Nonrecurring | Level 3 | Impaired Loans
Securities available for sale:
Fair Value, assets	$ 22,176	$ 19,493