Annual report pursuant to Section 13 and 15(d)

Fair Values of Financial Instruments (Details Textual)

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Fair Values of Financial Instruments (Details Textual) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Minimum Percentage of Defaults Rates on Above 3 Years Issuer Average in Other than Temporary Impairment Model Assumptions 0.25%  
Maximum Percentage of Defaults Rates on Above 3 Years Issuer Average in Other than Temporary Impairment Model Assumptions 5.00%  
Minimum Percentage of Recovery Assumptions on Other than Temporary Impairment Model Assumptions 0.00%  
Maximum Percentage of Recovery Assumptions on Other than Temporary Impairment Model Assumptions 15.00%  
Available-for-sale Securities, Amortized Cost Basis $ 3.9 $ 3.9
Unpaid Principal Balance 9.9 19.9
Impaired Financing Receivable, Reserve 1.7 2.0
Impaired Financing Receivable, Fair Value $ 8.2 $ 17.9