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Fair Value Measurements (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Fair Value Measurements [Abstract]    
Transfers of securities between Level 1 and Level 2 $ 0  
Impaired loans held-for-investment and held-for-sale with outstanding principal balances 31,700,000 43,700,000
Estimated fair value of impaired loans held-for-investment and held-for-sale 27,600,000 36,900,000
Net impairment charges 2,500,000 3,600,000
Net impairment charge-offs 2,300,000 3,900,000
Assets acquired through foreclosure, or deed in lieu of foreclosure $ 634,000 $ 870,000
Maturity period of cash and cash equivalents three months or less  
Maturity period of certificates of deposit minimum six-months or less  
Maturity period of certificates of deposit maximum six months or greater