Investment Securities - Amortized Costs, Gains and Losses, Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investment Securities
Total Amortized Cost	$ 188,183	$ 175,123
Gross Unrealized Gains	4,150	768
Gross Unrealized Losses	(297)	(798)
Fair value	192,036	175,093
U.S. Treasury
Investment Securities
Total Amortized Cost	743	987
Gross Unrealized Gains	33	8
Gross Unrealized Losses	0	0
Fair value	776	995
U.S government agency obligations
Investment Securities
Total Amortized Cost	8,654	8,124
Gross Unrealized Gains	178	0
Gross Unrealized Losses	(14)	(77)
Fair value	8,818	8,047
U.S. government-sponsored enterprises
Investment Securities
Total Amortized Cost	34,293	22,300
Gross Unrealized Gains	517	41
Gross Unrealized Losses	0	(58)
Fair value	34,810	22,283
Obligations of states and political subdivisions
Investment Securities
Total Amortized Cost	42,448	33,704
Gross Unrealized Gains	1,047	144
Gross Unrealized Losses	(1)	(59)
Fair value	43,494	33,789
Mortgage-backed securities
Investment Securities
Total Amortized Cost	92,559	105,522
Gross Unrealized Gains	2,331	522
Gross Unrealized Losses	(3)	(428)
Fair value	94,887	105,616
Other debt securities
Investment Securities
Total Amortized Cost	8,000	3,000
Gross Unrealized Gains	44	53
Gross Unrealized Losses	0	0
Fair value	8,044	3,053
Bank issued trust preferred securities
Investment Securities
Total Amortized Cost	1,486	1,486
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(279)	(176)
Fair value	$ 1,207	$ 1,310