Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.20.4
Subsequent Events (Details) - USD ($)
 1 Months Ended 9 Months Ended
Feb. 10, 2021
Feb. 04, 2021
Jan. 28, 2021
Jan. 26, 2021
Dec. 31, 2020
Jan. 25, 2021
Jan. 22, 2021
Jan. 05, 2021
Mar. 31, 2020
Subsequent Events (Textual)                  
Common stock, par value         $ 0.0001       $ 0.0001
Preferred stock, shares authorized         50,000,000       50,000,000
Preferred stock, par value         $ 0.0001       $ 0.0001
Underwriters [Member]                  
Subsequent Events (Textual)                  
Number of common stock purchase by warrants         381,800        
Exercise price of warrant         $ 5.625        
Subsequent Event [Member] | Senior Secured Promissory Notes [Member]                  
Subsequent Events (Textual)                  
Number of common stock purchase by warrants 269,332     88,871          
Exercise price of warrant $ 1.95     $ 3.39          
Principal amount $ 800,000     $ 300,000          
Common stock, shares issued 538,664                
Subsequent Event [Member] | Senior Secured Promissory Notes One [Member]                  
Subsequent Events (Textual)                  
Number of common stock purchase by warrants       355,485          
Preferred stock, share issued       1,443.41          
Principal amount       $ 1,500,000          
Common stock, shares issued       173,111          
Subsequent Event [Member] | Senior secured promissory note [Member]                  
Subsequent Events (Textual)                  
Notes converted into shares     136,782            
Notes converted, description     The holder of the senior secured promissory note issued on November 14, 2018, converted the notes principal balance of approximately $0.3 million plus accrued interest of $0.1 million            
Subsequent Event [Member] | Senior secured promissory note [Member]                  
Subsequent Events (Textual)                  
Notes converted into shares     211,273            
Notes converted, description     The holders of the notes issued on November 13, 2020, converted the notes principal balance and accrued interest of approximately $0.8 million            
Subsequent Event [Member] | Convertible Notes and Warrants [Member]                  
Subsequent Events (Textual)                  
Number of common stock purchase by warrants       235,183          
Exercise price of warrant       $ 0.39          
Preferred stock, share issued       360,111          
Common stock, shares issued           360,111      
Subsequent Event [Member] | Convertible Notes and Warrants One [Member]                  
Subsequent Events (Textual)                  
Number of common stock purchase by warrants       940,730          
Exercise price of warrant       $ 0.36          
Subsequent Event [Member] | Patents [Member]                  
Subsequent Events (Textual)                  
Patents paid   $ 1,550,000              
Subsequent Event [Member] | Series A Preferred Stock [Member]                  
Subsequent Events (Textual)                  
Preferred stock, shares authorized             1,500 300  
Preferred stock, share issued       251          
Preferred stock, par value             $ 0.0001 $ 0.0001  
Subsequent Event [Member] | Series B Preferred Stock [Member]                  
Subsequent Events (Textual)                  
Preferred stock, shares authorized             1,500    
Preferred stock, par value             $ 0.0001    
Subsequent Event [Member] | Series A Preferred Stock One [Member]                  
Subsequent Events (Textual)                  
Exercise price of warrant       $ 2.73          
Preferred stock, share issued       1,443.41   251      
Preferred stock, par value       $ 0.0001   $ 0.0001      
Common stock, shares issued       173,111          
Subsequent Event [Member] | Roth Capital Partners, LLC [Member]                  
Subsequent Events (Textual)                  
Common stock, par value       $ 0.0001          
Purchase price per share       $ 4.50          
Subsequent Event [Member] | Roth Capital Partners, LLC [Member] | Underwriters [Member]                  
Subsequent Events (Textual)                  
Number of common stock sell to underwriters       4,150,000          
Purchase price per share       $ 4.14          
Subsequent Event [Member] | Roth Capital Partners, LLC [Member] | Underwriters [Member] | Over-Allotment Option [Member]                  
Subsequent Events (Textual)                  
Number of common stock sell to underwriters       622,500