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Stockholders' Equity (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 29, 2015
Sep. 19, 2014
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Related Party Transaction [Line Items]          
Ownership percentage by noncontrolling interests 5.00%        
Stock repurchase program, number of shares authorized to be repurchased   1,000,000      
Stock repurchase program, amount authorized   $ 1,100,000      
Stock repurchase program, period in force   24 months      
Stock repurchase program, maximum authorized purchase price per share   $ 1.30      
Stock repurchase program, stock repurchased during period, shares       235,906  
Stock repurchase program, stock repurchased during period, average price per share       $ 0.55  
Gain (Loss) on Disposition of Assets       $ 157,870 $ 0
American DG New York, LLC          
Related Party Transaction [Line Items]          
Ownership percentage by noncontrolling interests     49.00% 49.00%  
Payments to Acquire Projects     $ 100,000    
Stock Issued During Period, Shares, Purchase of Assets     100,000    
Equity Method Investment, Ownership Percentage     51.00% 51.00%  
Equity Method Investment, Ownership Percentage, Legal Interest     51.00% 51.00%  
Equity Exchange Agreement | IN Holdings, Inc.          
Related Party Transaction [Line Items]          
Treasury stock acquired and subsequently retired 1,320,000        
Stock transferred in disposal of partial ownership in consolidated subsidiary 1,320,000