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Securities Sold Under Agreements to Repurchase (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreements to repurchase $ 26,621,984 $ 28,068,215
Minimum [Member]    
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreement to repurchase, maturity of agreement 1 day  
Maximum [Member]    
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreement to repurchase, maturity of agreement 4 days