Loans and the Allowance for Loan Losses (Details) - Schedule of analysis of impaired loans, by class - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	$ 29,195		$ 29,195		$ 29,747
No related allowance recorded, Unpaid Principal Balance	29,491		29,491		30,377
Impaired loans with No Related Allowance Average Recorded Investment	29,264	$ 20,398	28,840	$ 16,784
Impaired loans with No Related Allowance Interest Income Recognized	321	158	762	276
Impaired loans With An Allowance Recorded Average Recorded Investment	1,645	91,546	1,654	102,577
Impaired loans With An Allowance Recorded Interest Income Recognized	2	925	39	2,447
Total, Recorded Investment	30,835		30,835		30,991
Total, Unpaid Principal Balance	31,543		31,543		31,621
Total, Related Allowance	110		110		145
Total Impaired Loans Average Recorded Investment	30,909	111,944	30,494	102,557
Total Impaired Loans Interest Income Recognized	323	1,083	801	2,723
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	3,068		3,068		3,637
No related allowance recorded, Unpaid Principal Balance	3,073		3,073		4,063
Impaired loans with No Related Allowance Average Recorded Investment	3,100	6,704	3,149	4,317
Impaired loans with No Related Allowance Interest Income Recognized	34	66	115	86
Impaired loans With An Allowance Recorded Average Recorded Investment		91,393		85,620
Impaired loans With An Allowance Recorded Interest Income Recognized		925		2,447
Total, Recorded Investment	3,068		3,068		3,637
Total, Unpaid Principal Balance	3,073		3,073		4,063
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	3,100	98,097	3,149	89,937
Total Impaired Loans Interest Income Recognized	34	991	115	2,533
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	19,221		19,221		18,288
No related allowance recorded, Unpaid Principal Balance	19,283		19,283		18,288
Impaired loans with No Related Allowance Average Recorded Investment	19,302	9,129	18,813	8,167
Impaired loans with No Related Allowance Interest Income Recognized	221	65	424	118
With an allowance recorded, Recorded Investment	1,640		1,640		1,244
With an allowance recorded, Unpaid Principal Balance	2,052		2,052		1,245
With an allowance recorded, Related Allowance	110		110		145
Impaired loans With An Allowance Recorded Average Recorded Investment	1,645	153	1,654
Impaired loans With An Allowance Recorded Interest Income Recognized	2		39
Total, Recorded Investment	20,861		20,861		19,532
Total, Unpaid Principal Balance	21,335		21,335		19,532
Total, Related Allowance	110		110		145
Total Impaired Loans Average Recorded Investment	20,947	9,282	20,467	8,320
Total Impaired Loans Interest Income Recognized	223	65	463	118
Commercial Construction Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	4,340		4,340		5,909
No related allowance recorded, Unpaid Principal Balance	4,340		4,340		5,909
Impaired loans with No Related Allowance Average Recorded Investment	4,285	1,224	4,273	979
Impaired loans with No Related Allowance Interest Income Recognized	63	21	215	54
Total, Recorded Investment	4,340		4,340		5,909
Total, Unpaid Principal Balance	4,340		4,340		5,909
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	4,285	1,224	4,273	979
Total Impaired Loans Interest Income Recognized	63	21	215	54
Residential Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	2,520		2,520		1,851
No related allowance recorded, Unpaid Principal Balance	2,749		2,749		2,055
Impaired loans with No Related Allowance Average Recorded Investment	2,529	3,271	2,551	3,247
Impaired loans with No Related Allowance Interest Income Recognized	2	5	6	15
Total, Recorded Investment	2,520		2,520		1,851
Total, Unpaid Principal Balance	2,749		2,749		2,055
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	2,259	3,271	2,551	3,247
Total Impaired Loans Interest Income Recognized	2	5	6	15
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	46		46		62
No related allowance recorded, Unpaid Principal Balance	46		46		62
Impaired loans with No Related Allowance Average Recorded Investment	48	70	54	74
Impaired loans with No Related Allowance Interest Income Recognized	1	1	2	3
Total, Recorded Investment	46		46		62
Total, Unpaid Principal Balance	46		46		62
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	48	70	54	74
Total Impaired Loans Interest Income Recognized	$ 1	$ 1	$ 2	$ 3