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Customer Acquisitions (Details)
 3 Months Ended
Mar. 31, 2015
USD ($)
contract
Dec. 31, 2014
USD ($)
agreement
contract
Dec. 31, 2016
USD ($)
Finite-Lived Intangible Assets [Line Items]      
Intangible assets paid and capitalized     $ 39,862
Customer Relationships | Northern California      
Finite-Lived Intangible Assets [Line Items]      
Residential and commercial natural gas contracts | contract 9,500    
Contract purchase price $ 2,000,000    
Amortization period 3 years    
Customer Relationships | Connecticut      
Finite-Lived Intangible Assets [Line Items]      
Contract purchase price   $ 2,200,000  
Amortization period   3 years  
Number of purchase agreements | agreement   2  
Variable rate electricity contracts | contract   12,500  
Intangible assets paid and capitalized   $ 1,500,000