Annual report pursuant to Section 13 and 15(d)

Equity (Details Textual)

v3.19.1
Equity (Details Textual) - USD ($)
 1 Months Ended 12 Months Ended
Mar. 03, 2017
Feb. 28, 2017
Dec. 31, 2018
Dec. 31, 2017
Preferred Stock, Par or Stated Value Per Share     $ 0.001 $ 0.001
Preferred Stock, Shares Authorized     10,000,000 10,000,000
Convertible Preferred Stock Maximum Beneficial Ownership Percentage     9.99%  
Proceeds from Issuance of Common Stock     $ 0 $ 13,657,331
Private Placement [Member]        
Class Of Warrant Or Number Of Securities 5,220,826   5,929,256 5,929,256
Sale of Stock, Price Per Share $ 2.535      
Payments of Stock Issuance Costs $ 1,100,000      
Proceeds from Issuance or Sale of Equity 15,000,000      
Proceeds from Issuance of Common Stock $ 13,657,331      
Preferred Stock [Member]        
Conversion of Stock, Shares Converted   810,000    
Stock Issued During Period, Shares, New Issues     708,430  
Preferred Stock [Member] | Private Placement [Member]        
Sale of Stock, Number of Shares Issued in Transaction 708,430      
Common Stock [Member]        
Conversion of Stock, Shares Converted   810,000    
Stock Issued During Period, Shares, New Issues     5,220,826  
Common Stock [Member] | Private Placement [Member]        
Sale of Stock, Number of Shares Issued in Transaction 5,929,256      
Convertible Preferred Stock [Member]        
Preferred Stock, Par or Stated Value Per Share   $ 0.001    
Preferred Stock, Shares Authorized   3,000,000    
Convertible Preferred Stock Stated Value Per Share   2.535    
Convertible Preferred Stock Maximum Beneficial Ownership Percentage   4.99%    
Series A Preferred Stock [Member]        
Stock Issued During Period, Shares, New Issues       1,518,430