Fair Value Measurements - Recurring Basis (Details) - Measured on a recurring basis - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Securities available for sale:
Total securities available for sale	$ 55,854	$ 51,300
Obligations of U.S. Government agencies
Securities available for sale:
Total securities available for sale	8,363	9,420
Obligations of States and political subdivisions
Securities available for sale:
Total securities available for sale	25,332	21,096
Mortgage-backed securities
Securities available for sale:
Total securities available for sale	20,707	19,404
Equity securities
Securities available for sale:
Total securities available for sale	1,452	1,380
Level 2
Securities available for sale:
Total securities available for sale	55,854	51,300
Level 2 | Obligations of U.S. Government agencies
Securities available for sale:
Total securities available for sale	8,363	9,420
Level 2 | Obligations of States and political subdivisions
Securities available for sale:
Total securities available for sale	25,332	21,096
Level 2 | Mortgage-backed securities
Securities available for sale:
Total securities available for sale	20,707	19,404
Level 2 | Equity securities
Securities available for sale:
Total securities available for sale	$ 1,452	$ 1,380