Quarterly report pursuant to Section 13 or 15(d)

Going Concern and Management's Plans (Details Narrative)

v3.19.2
Going Concern and Management's Plans (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]              
Cash $ 10,123,186       $ 10,123,186   $ 15,538,849
Marketable securities 3,032,386       3,032,386   2,878,664
Working capital 11,760,762       11,760,762    
Accumulated deficit 163,987,328       163,987,328   $ 159,856,481
Net loss $ 2,237,220 $ 1,893,627 $ 1,232,785 $ (2,204,088) 4,130,847 $ (971,303)  
Cash used in operating activities         $ (5,212,306) $ (7,895,047)