Annual report pursuant to Section 13 and 15(d)

Fair Values of Financial Instruments (Details Textual)

v3.6.0.2
Fair Values of Financial Instruments (Details Textual) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Fair Values of Financial Instruments [Line Items]    
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 $ 3,700 $ 3,700
Unpaid Principal Balance 3,500 7,400
Impaired Financing Receivable, Reserve 1,200 356
Impaired Financing Receivable, Fair Value $ 2,300 $ 7,000