Investment Securities - Available for sale (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Marketable securities
Amortized Cost	$ 102,770	$ 105,269
Gross Unrealized Gains	2,367	1,156
Gross Unrealized Losses	485	169
Fair Value	104,652	106,256
Obligations of U.S. Government agencies
Debt securities
Amortized Cost	5,761	10,186
Gross Unrealized Gains	205	162
Gross Unrealized Losses		36
Fair Value	5,966	10,312
Obligations of States and political subdivisions
Debt securities
Amortized Cost	34,942	33,885
Gross Unrealized Gains	855	716
Gross Unrealized Losses	409	43
Fair Value	35,388	34,558
Mortgage-backed securities
Debt securities
Amortized Cost	57,113	56,275
Gross Unrealized Gains	1,239	236
Gross Unrealized Losses	33	90
Fair Value	58,319	56,421
Subordinated debt investments
Debt securities
Amortized Cost	2,988	2,988
Gross Unrealized Gains	68	42
Gross Unrealized Losses	43
Fair Value	3,013	3,030
Equity securities
Equity securities
Amortized Cost	1,966	1,935
Fair Value	$ 1,966	$ 1,935

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