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Employee Benefits (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Employee Benefits (Textual)    
Maximum employee contribution of compensation received 4.00%  
Employer Matching Contribution, Percent 100.00%  
Vesting period of matching contribution 3 years  
Amount of Employer contributions charged to expense $ 0.4 $ 0.4
Description of Supplemental Executive Retirement Plan agreement with certain active and retired officers
Agreements provide monthly payments for up to 15 years that equal 15 percent to 25 percent of average compensation prior to retirement or death.
  
Expense charged under Supplemental Executive Retirement Plan agreements 0.1 0.1
Cash surrender value of all life insurance policies 12.9 12.6
Vesting period of company's contribution to each employee account 3 years  
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares 447,322 442,861
Employee Stock Ownership Plan (ESOP), Compensation Expense $ 0.3 $ 0.4