Loans and the Allowance for Loan Losses (Details) - Schedule of analysis of impaired loans, by class - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	$ 64,783		$ 64,783		$ 83,531
No related allowance recorded, Unpaid Principal Balance	125,854		125,854		135,146
Impaired loans with No Related Allowance Average Recorded Investment	73,986	$ 24,182	78,004	$ 23,288
Impaired loans with No Related Allowance Interest Income Recognized	338	210	731	441
Total, Recorded Investment	73,322		73,322		84,664
Total, Unpaid Principal Balance	134,393		134,393		136,279
Total, Related Allowance	672		672		39
Total Impaired Loans Average Recorded Investment	82,530	26,115	86,552	25,229
Total Impaired Loans Interest Income Recognized	349	233	754	479
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	31,301		31,301		49,761
No related allowance recorded, Unpaid Principal Balance	91,966		91,966		101,066
Impaired loans with No Related Allowance Average Recorded Investment	38,770	3,209	42,056	3,230
Impaired loans with No Related Allowance Interest Income Recognized	35	42	66	81
Total, Recorded Investment	31,301		31,301		49,761
Total, Unpaid Principal Balance	91,966		91,966		101,066
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	38,770	3,209	42,056	3,230
Total Impaired Loans Interest Income Recognized	35	42	66	81
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	23,354		23,354		23,905
No related allowance recorded, Unpaid Principal Balance	23,477		23,477		23,976
Impaired loans with No Related Allowance Average Recorded Investment	23,422	15,456	23,504	14,526
Impaired loans with No Related Allowance Interest Income Recognized	127	97	370	203
With an allowance recorded, Recorded Investment	8,539		8,539		1,133
With an allowance recorded, Unpaid Principal Balance	8,539		8,539		1,133
With an allowance recorded, Related Allowance	672		672		39
Impaired loans With An Allowance Recorded Average Recorded Investment	8,544	1,933	8,548	1,941
Impaired loans With An Allowance Recorded Interest Income Recognized	11	33	23	38
Total, Recorded Investment	31,893		31,893		25,038
Total, Unpaid Principal Balance	32,016		32,016		25,109
Total, Related Allowance	672		672		39
Total Impaired Loans Average Recorded Investment	31,966	17,389	32,052	16,467
Total Impaired Loans Interest Income Recognized	138	130	393	241
Commercial Construction Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	7,600		7,600		6,662
No related allowance recorded, Unpaid Principal Balance	7,600		7,600		6,662
Impaired loans with No Related Allowance Average Recorded Investment	9,225	4,263	9,845	4,266
Impaired loans with No Related Allowance Interest Income Recognized	176	69	295	152
Total, Recorded Investment	7,600		7,600		6,662
Total, Unpaid Principal Balance	7,600		7,600		6,662
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	9,225	4,263	9,845	4,266
Total Impaired Loans Interest Income Recognized	176	69	295	152
Residential Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	2,528		2,528		3,203
No related allowance recorded, Unpaid Principal Balance	2,811		2,811		3,442
Impaired loans with No Related Allowance Average Recorded Investment	2,569	1,200	2,599	1,210
Impaired loans with No Related Allowance Interest Income Recognized		2		4
Total, Recorded Investment	2,528		2,528		3,203
Total, Unpaid Principal Balance	2,811		2,811		3,442
Total, Related Allowance
Total Impaired Loans Average Recorded Investment	2,569	1,200	2,599	1,210
Total Impaired Loans Interest Income Recognized		2		4
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment
No related allowance recorded, Unpaid Principal Balance
Impaired loans with No Related Allowance Average Recorded Investment		54		56
Impaired loans with No Related Allowance Interest Income Recognized				1
Total, Recorded Investment
Total, Unpaid Principal Balance
Total, Related Allowance
Total Impaired Loans Average Recorded Investment		54		56
Total Impaired Loans Interest Income Recognized				$ 1