Quarterly report pursuant to Section 13 or 15(d)

Description of business and basis of presentation - Additional Information (Details)

v3.20.1
Description of business and basis of presentation - Additional Information (Details)
3 Months Ended
May 18, 2017
Mar. 31, 2020
USD ($)
segment
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]      
Ownerhsip interest in American DG New York, LLC (percent)   51.00%  
Number of business segments | segment   2  
Right of use assets | $   $ 2,042,269 $ 2,173,951
American DG Energy, Inc.      
Business Acquisition [Line Items]      
Ownership interest (percent) 100.00%