Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.19.3
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Cash balances in excess of FDIC insurance limits $ 7,651,611   $ 7,651,611    
Revenue recognition, contract liabilities     167,118    
Revenues related to network fees and warranty contracts 85,674   260,823    
Revenues      
Accounts Receivable [Member] | Significant Customer [Member]          
Concentration risk, percentage     31.00%   35.00%
Sales Revenue [Member] | Significant Customer [Member]          
Concentration risk, percentage 12.00%        
Grant, Rebate and Alternative Fuel Credits [Member]          
Revenues $ 4,578 $ 6,724 $ 17,817 $ 68,062  
Grant and Rebate [Member]          
Deferred revenue amortized     88,248   $ 106,066
Product Sales [Member]          
Revenue recognition, contract liabilities $ 319,254 $ 102,958 $ 704,472 $ 381,557  
Product Sales [Member] | Sales Revenue [Member]          
Concentration risk, percentage 29.00%   13.00%    
Charging Service Revenues [Member] | Sales Revenue [Member] | Significant Customer [Member]          
Concentration risk, percentage 17.00% 19.00% 18.00% 17.00%  
Charging Service Revenue [Member]          
Revenue recognition, contract liabilities $ 317,990 $ 320,388 $ 937,870 $ 927,485  
Charging Service Revenue [Member] | Sales Revenue [Member]          
Concentration risk, percentage 10.00% 11.00%