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Acquisitions - Narrative (Detail)
Aug. 20, 2019
USD ($)
$ / shares
shares
Jul. 29, 2019
Jul. 26, 2019
USD ($)
$ / shares
shares
Dec. 31, 2019
shares
Dec. 31, 2018
shares
Business Acquisition [Line Items]          
Reverse stock split, conversion ratio   0.125      
Common stock outstanding (in shares)       16,800,612 13,178,750
American Electric          
Business Acquisition [Line Items]          
Shares to be issued prior to conversion (in shares)     276,549    
Fair value of stock (usd per share) | $ / shares     $ 7.12    
Number of shares of the combined company (in shares)     1,466,092    
Cash | $     $ 650,000    
American Electric | Series A Preferred Stock          
Business Acquisition [Line Items]          
Shares of outstanding series A Convertible Preferred Stock converted (in shares)     1,000,000    
American Electric | Restricted Stock Units and Deferred Shares          
Business Acquisition [Line Items]          
Shares of outstanding series A Convertible Preferred Stock converted (in shares)     15,629    
American Electric | American Electric          
Business Acquisition [Line Items]          
Common stock outstanding (in shares)     1,173,914    
Diversenergy, LLC          
Business Acquisition [Line Items]          
Fair value of stock (usd per share) | $ / shares $ 4.38        
Cash | $ $ 2,000,000        
Diversenergy, LLC | Common Stock          
Business Acquisition [Line Items]          
Number of shares of the combined company (in shares) 684,963        
Energia Superior          
Business Acquisition [Line Items]          
Ownership interest 50.00%        
Board of Directors Chairman | Share Exchange Agreement          
Business Acquisition [Line Items]          
Percentage of beneficial ownership     88.40%