Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Plan of Operations (Details Narrative)

v3.19.2
Liquidity and Plan of Operations (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Mar. 28, 2019
Mar. 19, 2019
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Accumulated deficit     $ (73,813,195)   $ (73,813,195)   $ (65,944,759)  
Net loss     (3,344,727) $ (3,411,031) (7,395,435) $ (7,521,037)    
Proceeds from public offering of common stock, gross   $ 30,000,000            
Proceeds from issuance initial public offering   $ 27,800,000     30,103,307    
Cash and cash equivalents     36,830,924 8,903,000 36,830,924 8,903,000 12,446,838 $ 7,307,000
Restricted cash     $ 586,000 $ 636,000 $ 586,000 $ 636,000 $ 561,000 $ 691,000
Over-Allotment Option [Member]                
Proceeds from issuance initial public offering $ 2,300,000