Loans and the Allowance for Loan Losses (Details) - Schedule of allowance for loan losses - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				$ 31,748					$ 31,748	$ 25,744	$ 26,572
Loans charged-off									(18,011)	(239)	(39,573)
Recoveries									117	243	45
Provision for loan losses	$ 1,100	$ 1,100	$ 1,100	17,800	$ 2,000	$ 1,450	$ 1,450	$ 1,100	21,100	6,000	38,700
Balance	34,954				31,748				34,954	31,748	25,744
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				8,233					8,233	6,632	10,949
Loans charged-off									(17,066)	(70)	(39,343)
Recoveries									109	178	4
Provision for loan losses									18,599	1,493	35,022
Balance	9,875				8,233				9,875	8,233	6,632
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				17,112					17,112	12,583	10,926
Loans charged-off									(915)	(155)	(107)
Recoveries										51	35
Provision for loan losses									2,650	4,633	1,729
Balance	18,847				17,112				18,847	17,112	12,583
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				4,747					4,747	4,789	3,253
Loans charged-off
Recoveries
Provision for loan losses									(228)	(42)	1,536
Balance	4,519				4,747				4,519	4,747	4,789
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				1,050					1,050	958	976
Loans charged-off									(23)		(94)
Recoveries									2	12	3
Provision for loan losses									237	80	73
Balance	1,266				1,050				1,266	1,050	958
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				1					1	3	4
Loans charged-off									(7)	(14)	(29)
Recoveries									6	2	3
Provision for loan losses									2	10	25
Balance	2				1				2	1	3
Unallocated Financing Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance				$ 605					605	779	464
Loans charged-off
Recoveries
Provision for loan losses									(160)	(174)	315
Balance	$ 445				$ 605				$ 445	$ 605	$ 779