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Premises and Equipment (Details) - Schedule of Premises and Equipment - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 62,347	$ 60,377
Less: accumulated depreciation and amortization	40,154	37,700
Subtotal	22,193	22,677
Less: fair value adjustment for acquired leases	(534)	(602)
Total premises and equipment, net	21,659	22,075
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,403	2,403
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 16,092	16,027
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	10 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	25 years
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 30,077	29,039
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 13,775	$ 12,908
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	10 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	20 years
Furniture Fixtures And Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	3 years
Furniture Fixtures And Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	7 years

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-Name Accounting Standards Codification
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