Investments, Gross Unrealized Losses and Fair Value and Net Unrealized Gains (Losses) (Details) $ in Thousands	Mar. 31, 2021 USD ($) Security	Dec. 31, 2020 USD ($)
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	$ 103,878	$ 33,727
Twelve months or greater, Fair value	8,911	5,633
Total, Fair value	112,789	39,360
Less than twelve months, Gross unrealized losses	(1,848)	(206)
Twelve months or greater, Gross unrealized losses	(126)	(38)
Total, Gross Unrealized Losses	$ (1,974)	(244)
Number of securities owned with fair value less than cost | Security	88
U.S. Agency Securities [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	$ 27,104	13,720
Twelve months or greater, Fair value	0	0
Total, Fair value	27,104	13,720
Less than twelve months, Gross unrealized losses	(686)	(52)
Twelve months or greater, Gross unrealized losses	0	0
Total, Gross Unrealized Losses	(686)	(52)
U.S. Treasury Securities [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	12,444	0
Twelve months or greater, Fair value	0	0
Total, Fair value	12,444	0
Less than twelve months, Gross unrealized losses	(91)	0
Twelve months or greater, Gross unrealized losses	0	0
Total, Gross Unrealized Losses	(91)	0
Obligations of State and Political Subdivisions [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	29,716	5,407
Twelve months or greater, Fair value	3,361	0
Total, Fair value	33,077	5,407
Less than twelve months, Gross unrealized losses	(346)	(55)
Twelve months or greater, Gross unrealized losses	(87)	0
Total, Gross Unrealized Losses	(433)	(55)
Corporate Obligations [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	495	0
Twelve months or greater, Fair value	0	0
Total, Fair value	495	0
Less than twelve months, Gross unrealized losses	(5)	0
Twelve months or greater, Gross unrealized losses	0	0
Total, Gross Unrealized Losses	(5)	0
Mortgage-backed Securities in Government Sponsored Entities [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	34,119	14,600
Twelve months or greater, Fair value	5,550	5,633
Total, Fair value	39,669	20,233
Less than twelve months, Gross unrealized losses	(720)	(99)
Twelve months or greater, Gross unrealized losses	(39)	(38)
Total, Gross Unrealized Losses	$ (759)	$ (137)