XML 56 R42.htm IDEA: XBRL DOCUMENT v3.6.0.2
Accounting Pronouncements (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Concentration Risk [Line Items]    
Less unnamortized debt issuance costs $ 2,715,745 $ 2,680,897
Product Concentration Risk [Member] | Sales Revenue, Product Line [Member]    
Concentration Risk [Line Items]    
Energy percentage of revenue 99.00%