Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.21.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
 8 Months Ended 9 Months Ended 12 Months Ended
Jan. 31, 2021
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Cash   $ 22,341,433 $ 22,341,433 $ 22,341,433 $ 4,168,837
Working capital   19,579,775 19,579,775 19,579,775  
Net loss       (17,846,467) (9,648,500)
Cash used in operating activities       (18,069,954) (10,764,813)
Net proceeds from public offering [1]       19,175,546
Allowance for uncollectible amounts   356,292 356,292 356,292 71,935
Inventory reserve   217,000 217,000 217,000 892,000
Goodwill impairment        
Revenue recognition, contract liabilities       431,218  
Remaining performance obligations for network fees   424,564 424,564 424,564  
Revenues related to network fees and warranty contracts       466,388 190,860
Revenue recognized from performance obligations  
Revenues       6,230,231 2,759,190
Deferred revenue   431,218 431,218 431,218 568,178
Revenue recognization related to alternative fuel credits       $ 225,372 $ 123,446
Accounts Receivable [Member] | Significant Customer [Member]          
Concentration risk, percentage         10.00%
Revenues [Member] | Significant Customer [Member]          
Concentration risk, percentage       25.00%  
Revenues [Member] | Product Sales[Member]          
Concentration risk, percentage       34.00%  
Revenues [Member] | Another Significant Customer [Member]          
Concentration risk, percentage       11.00%  
Revenues [Member] | Product Sales One [Member]          
Concentration risk, percentage       15.00%  
Revenues [Member] | Another Significant Customer One [Member]          
Concentration risk, percentage       12.00%  
Grant and Rebate [Member]          
Revenues       $ 21,558 $ 22,396
Deferred revenue   70,356 $ 70,356 $ 70,356 $ 83,670
Subsequent Event [Member] | Public Offering [Member]          
New issuance of shares to public 5,660,000        
Offering price per share $ 41.00        
Gross proceeds from public offering $ 232,100,000        
Net proceeds from public offering $ 221,500,000        
Subsequent Event [Member] | Public Offering [Member] | Chief Executive Officer [Member]          
New issuance of shares to public 550,000        
At the Market Offering [Member]          
Number of common stock shares sold     3,597,833    
Proceeds from sale of stock   $ 20,000,000 $ 19,999,984    
[1] Includes gross proceeds of $19,999,984, less issuance costs of $824,438 deducted directly from the offering proceeds.