Securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) Security	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) Security
Debt Securities, Available-for-sale [Abstract]
Amortized cost	$ 153,271		$ 145,815
Gross unrealized gains	2,485		1,083
Gross unrealized losses	(3,148)		(1,183)
Fair value	152,608		145,715
Securities Available-for-sale [Abstract]
Realized gains on sales of securities	0	$ 36
Realized losses on sales of securities	0	(10)
Net realized gain	0	$ 26
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	2,882		979
More Than Twelve Months	266		204
Total	3,148		1,183
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	62,907		84,517
More Than Twelve Months	11,209		16,837
Total	$ 74,116		$ 101,354
Unrealized loss position, Number of securities | Security	38		47
U.S. Treasury Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	$ 6,938		$ 6,925
Gross unrealized gains	187		78
Gross unrealized losses	0		0
Fair value	7,125		7,003
Obligations of U.S. Government Agencies [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	35,645		33,998
Gross unrealized gains	18		9
Gross unrealized losses	(1,963)		(403)
Fair value	33,700		33,604
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	1,903		349
More Than Twelve Months	60		54
Total	1,963		403
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	26,400		29,744
More Than Twelve Months	4,890		2,562
Total	31,290		32,306
Obligations of State and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	27,914		24,525
Gross unrealized gains	679		442
Gross unrealized losses	(357)		(225)
Fair value	28,236		24,742
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	357		225
More Than Twelve Months	0		0
Total	357		225
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	9,601		10,112
More Than Twelve Months	0		0
Total	9,601		10,112
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	74,284		72,000
Gross unrealized gains	1,433		460
Gross unrealized losses	(828)		(552)
Fair value	74,889		71,908
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	622		405
More Than Twelve Months	206		147
Total	828		552
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	26,806		44,661
More Than Twelve Months	6,319		14,078
Total	33,125		58,739
Money Market Investments [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	3,948		3,825
Gross unrealized gains	0		0
Gross unrealized losses	0		0
Fair value	3,948		3,825
Corporate Bonds and Other Securities [Member]
Debt Securities, Available-for-sale [Abstract]
Amortized cost	4,542		4,542
Gross unrealized gains	168		94
Gross unrealized losses	0		(3)
Fair value	4,710		4,633
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	0		0
More Than Twelve Months	0		3
Total	0		3
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	100		0
More Than Twelve Months	0		197
Total	$ 100		$ 197