Quarterly report pursuant to Section 13 or 15(d)

Equity (Details Textual)

v3.10.0.1
Equity (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Mar. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Equity (Textual)      
Fair value of warrants     $ 100,000
Total option expense   $ 900,000 $ 1,900,000
Unrecognized compensation expense   2,500,000  
Net proceeds on exercise of warrants   900  
Warrant [Member]      
Equity (Textual)      
Fair value of warrants   $ 25,000  
Number of warrant granted   30,354,770  
Gross proceeds $ 15,100,000    
Net proceeds on exercise of warrants 13,800,000    
Gross proceeds from warrants exercised $ 20,400,000    
Sale of units, price per unit $ 0.50    
Warrants issued to consultants   $ 116,930  
Stock Options [Member]      
Equity (Textual)      
Number of warrant granted   1,267,500  
Stock options, term   10 years  
Stock options, vesting period   4 years  
Fair value of stock options   $ 494,000  
Fair value assumptions, expected life   6 years  
Fair value assumptions, expected dividend rate   0.00%  
Stock options cancelled   641,350  
Maximum [Member] | Warrant [Member]      
Equity (Textual)      
Warrants exercise price   $ 0.65  
Maximum [Member] | Stock Options [Member]      
Equity (Textual)      
Options exercise price   $ 0.72  
Fair value assumptions, expected discount rate   2.94%  
Fair value assumptions, expected volatility rate   80.40%  
Minimum [Member] | Warrant [Member]      
Equity (Textual)      
Warrants exercise price   $ 0.36  
Minimum [Member] | Stock Options [Member]      
Equity (Textual)      
Options exercise price   $ 0.34  
Fair value assumptions, expected discount rate   2.34%  
Fair value assumptions, expected volatility rate   79.10%  
Series A warrants [Member]      
Equity (Textual)      
Warrants exercise price   $ 0.60  
Warrants exercisable period   1 year  
Fair value of warrants   $ 500,000  
Fair value assumptions, expected life   1 year  
Fair value assumptions, expected discount rate   2.06%  
Fair value assumptions, expected volatility rate   72.00%  
Fair value assumptions, expected dividend rate   0.00%  
Aggregate series warrants 7,559,445    
Description of warrant exercisable Each series A warrant exercisable for one share of Common Stock at an exercise price of $0.60 per share.    
Series B warrants [Member]      
Equity (Textual)      
Warrants exercise price   $ 0.70  
Warrants exercisable period   2 years 6 months  
Fair value of warrants   $ 2,500,000  
Fair value assumptions, expected life   2 years 6 months  
Fair value assumptions, expected discount rate   2.33%  
Fair value assumptions, expected volatility rate   72.00%  
Fair value assumptions, expected dividend rate   0.00%  
Aggregate series warrants 22,678,393    
Description of warrant exercisable Each series B warrant exercisable for one share of Common Stock at an exercise price of $0.70 per share.    
Common Stock [Member]      
Equity (Textual)      
Sales of aggregate of commonstock units 30,237,894    
Shares of common stock, shares 30,237,894