Investment Securities - Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available for sale:
Less Than 12 Months, Fair Value	$ 168	$ 2,142
12 Months or Greater, Fair value	1,418	215
Total, Fair Value	1,586	2,357
Less Than 12 Months, Unrealized Losses	1	20
12 Months or Greater, Unrealized Losses	41	3
Total, Unrealized Losses	42	23
Held to maturity:
Less Than 12 Months, Fair Value	8,501
12 Months or Greater, Fair value	0
Total, Fair Value	8,501
Less Than 12 Months, Unrealized Losses	134
12 Months or Greater, Unrealized Losses	0
Total, Unrealized Losses	134
States and political subdivisions
Held to maturity:
Less Than 12 Months, Fair Value	2,462
12 Months or Greater, Fair value	0
Total, Fair Value	2,462
Less Than 12 Months, Unrealized Losses	16
12 Months or Greater, Unrealized Losses	0
Total, Unrealized Losses	16
Residential mortgage-backed securities
Available for sale:
Less Than 12 Months, Fair Value	168	2,142
12 Months or Greater, Fair value	1,418	215
Total, Fair Value	1,586	2,357
Less Than 12 Months, Unrealized Losses	1	20
12 Months or Greater, Unrealized Losses	41	3
Total, Unrealized Losses	42	$ 23
Held to maturity:
Less Than 12 Months, Fair Value	6,039
12 Months or Greater, Fair value	0
Total, Fair Value	6,039
Less Than 12 Months, Unrealized Losses	118
12 Months or Greater, Unrealized Losses	0
Total, Unrealized Losses	$ 118