Premises and Equipment, Net (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 37,385,000	$ 36,693,000
Less accumulated depreciation	(17,368,000)	(16,106,000)
Total	20,017,000	20,587,000
Depreciation expense	1,800,000	1,800,000	1,600,000
Future minimum rent commitments under various operating leases [Abstract]
2014	3,014,000
2015	2,550,000
2016	2,166,000
2017	2,057,000
2018	1,848,000
Thereafter	15,626,000
Net Total	27,261,000
Rent expense	3,700,000	3,600,000	3,300,000
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	2,370,000	2,370,000
Facilities [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	20,675,000	20,472,000
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	12,473,000	12,362,000
Construction in Process and Deposits on Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 1,867,000	$ 1,489,000