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Summary of Significant Accounting Policies (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Accounts receivable |  |
Contract liabilities | 5,000,000 |
Depreciation | $ 130,000 | $ 326,000
Number of shares of common stock issuable upon exercise of warrants and equity awards | 4,764,405 | 3,761,844
Right-of-use assets | $ 1,100,000 |
Related lease liabilities | 1,300,000 |
New Jersey [Member] |  |
Tax benefits of EDA | 11,100,000 |
Net proceeds from sale of net operating losses | $ 10,400,000 |
Minimum [Member] |  |
Property, Plant and Equipment, Useful Life | 3 years |
Maximum [Member] |  |
Property, Plant and Equipment, Useful Life | 7 years |
Hisun Agreement [Member] |  |
Contract liabilities | $ 1,500,000 | $ 2,000,000

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