Annual report pursuant to Section 13 and 15(d)

11. INCOME TAXES (Details)

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11. INCOME TAXES (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Benefit at U.S. Federal statutory rate $ (10,138,657) $ (13,806,124)
State taxes - deferred (2,010,517) (1,443,538)
Increase in valuation allowance 11,790,031 (1,015,580)
Research and development credits (115,086) (223,735)
Decrease in federal net operating loss 0 12,090,203
Decrease in federal research and development credits 0 4,294,344
Other 474,229 104,430
Benefit for income taxes $ 0 $ 0