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Premises and Equipment (Details Narrative)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
Number
Dec. 31, 2016
USD ($)
Number
Dec. 31, 2015
USD ($)
Number
Depreciation $ 5,400 $ 5,000 $ 6,100
Lessor Leasing Arrangements, Operating Leases, Renewal Term   5 years  
Operating Leases, Rent Expense, Net $ 8,500 $ 8,500 $ 8,500
Number of Subleased Premises | Number 4 4 6
Reduction Of Rent Expense $ 455 $ 579 $ 435
Minimum [Member]      
Lessee Leasing Arrangements, Operating Leases, Term of Contract 10 years    
Maximum [Member]      
Lessee Leasing Arrangements, Operating Leases, Term of Contract 5 years    
Banking Services [Member]      
Number of Stores | Number 30