Business and Summary of Significant Accounting Policies Business and Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended
Dec. 31, 2014
reporting_unit_level
office
atm
branch
Dec. 31, 2013
Dec. 31, 2012
Accounting Policy [Line Items]      
Number of Branches 44    
number of ATMs 58    
number of commercial production offices 1    
Equity Method Investment, Ownership Percentage 100.00%    
FHLB stock redemption period 5 years    
Number of Reporting Unit Levels 2    
Goodwill impairment $ 0 $ 2,830,000 $ 0
Financing Receivable, Individually Evaluated for Impairment 21,179,000 27,947,000 27,157,000
BOLI single carrier percentage of Tier I capital 15.00%    
BOLI CSV percentage of Tier I Capital 25.00%    
Commercial Repurchase Agreements Term To Maturity 5 years    
Maximum [Member]      
Accounting Policy [Line Items]      
Finite-Lived Intangible Asset, Useful Life 10 years    
Commercial Repurchase Agreements Call Term 24 months    
Minimum [Member]      
Accounting Policy [Line Items]      
Financing Receivable, Individually Evaluated for Impairment 250,000    
Finite-Lived Intangible Asset, Useful Life 5 years    
Commercial Repurchase Agreements Call Term 6 months    
Residential Portfolio Segment [Member]      
Accounting Policy [Line Items]      
Financing Receivable, Individually Evaluated for Impairment $ 9,656,000 $ 14,435,000 $ 13,805,000
term to maturity 30 years