Premises and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 38,512	$ 38,048
Less accumulated depreciation	(19,491)	(18,517)
Total	19,021	19,531
Depreciation expense	1,400	1,300	$ 1,500
Future minimum rent commitments under various operating leases [Abstract]
2017	1,666
2018	1,617
2019	1,624
2020	1,444
2021	1,408
Thereafter	13,388
Net Total	21,147
Rent expense	1,800	2,000	$ 2,800
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	2,068	2,068
Facilities [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	22,873	22,849
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	11,729	11,676
Construction in Process and Deposits on Equipment and Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 1,842	$ 1,455