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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Jan. 02, 2019
Dec. 31, 2017
Accounts receivable      
Depreciation   $ 128,500 $ 130,000    
Number of shares of common stock issuable upon exercise of warrants and equity awards   4,766,990 4,764,405    
Warrants exercise price   $ 0.01      
Number of shares of common stock issued in calculation basic loss per share   200,000      
Right-of-use assets   $ 1,431,640 $ 400,000  
Related lease liabilities   1,531,450   $ 1,900,000  
Other liabilities   100,000      
Subsequent Event [Member]          
Net proceeds from sale of net operating losses $ 1,800,000        
New Jersey [Member]          
Tax benefits of EDA   1,900,000 10,400,000    
Net proceeds from sale of net operating losses   1,800,000 11,100,000    
Hisun Agreement [Member]          
Contract liabilities   $ 1,500,000 $ 2,000,000   $ 2,500,000