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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

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