Securities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) Security	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Security	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Security
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 168,002		$ 168,002		$ 202,000
Gross Unrealized Gains	927		927		532
Gross unrealized losses	(1,343)		(1,343)		(3,167)
Securities available-for-sale, at fair value	167,586		167,586		199,365
Available-for-sale Securities, Realized Gains (Losses) [Abstract]
Realized gains on sales of securities	87	$ 6	87	$ 554
Realized losses on sales of securities	0	0	0	(39)
Net realized gain	87	$ 6	87	$ 515
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	1,255		1,255		3,166
More Than Twelve Months	88		88		1
Gross Unrealized Losses	1,343		1,343		3,167
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	99,097		99,097		129,682
More Than Twelve Months	3,431		3,431		100
Total	$ 102,528		$ 102,528		$ 129,782
Available-for-sale securities with continuous unrealized loss position, number of securities [Abstract]
Cause			caused by increases in market interest rates.
Number of Securities | Security	65		65		98
U.S. Treasury Securities [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost					$ 20,000
Gross Unrealized Gains					0
Gross unrealized losses					0
Securities available-for-sale, at fair value					20,000
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Gross Unrealized Losses					0
Obligations of U.S. Government Agencies [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 9,405		$ 9,405		9,361
Gross Unrealized Gains	3		3		0
Gross unrealized losses	(90)		(90)		(166)
Securities available-for-sale, at fair value	9,318		9,318		9,195
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	3		3		166
More Than Twelve Months	87		87		0
Gross Unrealized Losses	90		90		166
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	2,263		2,263		9,195
More Than Twelve Months	3,331		3,331		0
Total	$ 5,594		$ 5,594		$ 9,195
Available-for-sale securities with continuous unrealized loss position, number of securities [Abstract]
Number of Securities | Security	7		7		6
Obligations of states and political subdivisions [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 69,532		$ 69,532		$ 78,645
Gross Unrealized Gains	691		691		358
Gross unrealized losses	(131)		(131)		(1,016)
Securities available-for-sale, at fair value	70,092		70,092		77,987
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	131		131		1,016
More Than Twelve Months	0		0		0
Gross Unrealized Losses	131		131		1,016
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	14,938		14,938		38,020
More Than Twelve Months	0		0		0
Total	$ 14,938		$ 14,938		$ 38,020
Available-for-sale securities with continuous unrealized loss position, number of securities [Abstract]
Number of Securities | Security	20		20		56
Mortgage-backed securities [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 81,018		$ 81,018		$ 85,649
Gross Unrealized Gains	0		0		18
Gross unrealized losses	(1,116)		(1,116)		(1,973)
Securities available-for-sale, at fair value	79,902		79,902		83,694
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	1,116		1,116		1,973
More Than Twelve Months	0		0		0
Gross Unrealized Losses	1,116		1,116		1,973
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	79,902		79,902		80,680
More Than Twelve Months	0		0		0
Total	$ 79,902		$ 79,902		$ 80,680
Available-for-sale securities with continuous unrealized loss position, number of securities [Abstract]
Number of Securities | Security	24		24		23
Money market investments [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 748		$ 748		$ 647
Gross Unrealized Gains	0		0		0
Gross unrealized losses	0		0		0
Securities available-for-sale, at fair value	748		748		647
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Gross Unrealized Losses	0		0		0
Corporate Bond and Other Securities [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	7,199		7,199		7,598
Gross Unrealized Gains	152		152		92
Gross unrealized losses	(6)		(6)		(12)
Securities available-for-sale, at fair value	7,345		7,345		7,678
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Less Than Twelve Months	5		5		11
More Than Twelve Months	1		1		1
Gross Unrealized Losses	6		6		12
Securities Available-for-Sale, Fair Value [Abstract]
Less than Twelve Months	1,994		1,994		1,787
More Than Twelve Months	100		100		100
Total	$ 2,094		$ 2,094		$ 1,887
Available-for-sale securities with continuous unrealized loss position, number of securities [Abstract]
Number of Securities | Security	14		14		13
Common Stock [Member]
Amortized cost and fair value of securities available-for-sale [Abstract]
Amortized Cost	$ 100		$ 100		$ 100
Gross Unrealized Gains	81		81		64
Gross unrealized losses	0		0		0
Securities available-for-sale, at fair value	181		181		164
Securities Available-for-Sale, Gross Unrealized Losses [Abstract]
Gross Unrealized Losses	$ 0		$ 0		$ 0