Investment Securities (Details 1) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Information concerning investments with unrealized losses
Less than 12 months, Fair Value	$ 80,272	$ 83,997
Less than 12 months, Unrealized Losses	(1,237)	(1,797)
12 months or longer, Fair Value	10,608	8,338
12 months or longer, Unrealized Losses	(353)	(299)
Total, Fair Value	90,880	92,335
Total, Unrealized Losses	(1,590)	(2,096)
U.S. Agency [Member]
Information concerning investments with unrealized losses
Less than 12 months, Fair Value	2,391	398
Less than 12 months, Unrealized Losses	(29)	(2)
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	2,391	398
Total, Unrealized Losses	(29)	(2)
U.S. Agency mortgage-backed securities [Member]
Information concerning investments with unrealized losses
Less than 12 months, Fair Value	49,070	49,918
Less than 12 months, Unrealized Losses	(439)	(703)
12 months or longer, Fair Value	1,405	1,576
12 months or longer, Unrealized Losses	(57)	(62)
Total, Fair Value	50,475	51,494
Total, Unrealized Losses	(496)	(765)
Taxable Municipal [Member]
Information concerning investments with unrealized losses
Less than 12 months, Fair Value	14,320	13,301
Less than 12 months, Unrealized Losses	(428)	(522)
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	14,320	13,301
Total, Unrealized Losses	(428)	(522)
Corporate bonds and other securities [Member]
Information concerning investments with unrealized losses
Less than 12 months, Fair Value	14,491	20,380
Less than 12 months, Unrealized Losses	(341)	(570)
12 months or longer, Fair Value	9,203	6,762
12 months or longer, Unrealized Losses	(296)	(237)
Total, Fair Value	23,694	27,142
Total, Unrealized Losses	$ (637)	$ (807)