Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value Recurring and Nonrecurring Basis (Details)

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Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value Recurring and Nonrecurring Basis (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Alternative fuel credits $ 164,647 $ 476,992
Marketable securities   3,150,332
Total assets 164,647 3,627,324
Contingent consideration 245,000
Warrants payable 40,813 5,102
Total liabilities 285,813 5,102
Level 1 [Member]    
Alternative fuel credits
Marketable securities   3,150,332
Total assets 3,150,332
Contingent consideration  
Warrants payable
Total liabilities
Level 2 [Member]    
Alternative fuel credits 164,647 476,992
Marketable securities  
Total assets 164,647 476,992
Contingent consideration  
Warrants payable
Total liabilities
Level 3 [Member]    
Alternative fuel credits
Marketable securities  
Total assets
Contingent consideration 245,000  
Warrants payable 40,813 5,102
Total liabilities $ 285,813 $ 5,102