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Loans and the Allowance for Loan Losses (Details) - Schedule of allowance for loan losses - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance $ 31,748 $ 25,744
Charge-offs (17,038) (72)
Recoveries 19 129
Provision 17,800 1,100
Balance 32,529 26,901
Commercial Portfolio Segment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 8,232 6,632
Charge-offs (17,020)
Recoveries 19 126
Provision 17,318 (91)
Balance 8,550 6,667
Commercial Real Estate Portfolio Segment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 17,111 12,583
Charge-offs (71)
Recoveries 3
Provision 323 1,603
Balance 17,435 14,118
Commercial Construction Portfolio Segment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 4,747 4,789
Charge-offs
Recoveries
Provision 25 (215)
Balance 4,772 4,574
Residential Real Estate Portfolio Segment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 1,051 958
Charge-offs (18)
Recoveries
Provision 77 50
Balance 1,109 1,008
Consumer Portfolio Segment [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 2 3
Charge-offs (1)
Recoveries
Provision 1 1
Balance 2 3
Unallocated [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Balance 605 779
Charge-offs
Recoveries
Provision 56 (248)
Balance $ 661 $ 531