Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 13,074	$ 12,421
Less: accumulated depreciation	(8,486)	(7,698)
Property, Plant and Equipment, Net	4,588	4,723
Depreciation of premises and equipment	1,269	1,120	$ 1,030
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	2,446
2020	2,350
2021	1,985
2022	1,864
2023	1,549
Thereafter	1,104
Total	11,298	12,700
Total rental expense	2,700	2,600	$ 2,600
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total premises and equipment	6,787	6,612
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment	2,992	3,093
Computer equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment	2,033	1,968
Computer software
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 1,262	$ 748

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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