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Carrying Amounts and Fair Value of Financial Instruments (Narrative) (Details)
9 Months Ended
Sep. 30, 2015
USD ($)
investment
Dec. 31, 2014
USD ($)
Fair Value Disclosures [Abstract]    
Number of equity investments | investment 2  
Investor funding period 30 days  
Review period to request a new third party appraisal 24 months  
Impaired financing receivable, recorded investment $ 13,883,988 $ 20,247,955
Fair value disclosure, off-balance sheet risks, amount, liability $ 52,800,000