Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Details Textual)

v3.19.1
Capital Stock (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Apr. 09, 2018
Jun. 14, 2017
Apr. 30, 2018
Apr. 23, 2018
Apr. 18, 2018
Apr. 17, 2018
Feb. 21, 2017
May 24, 2016
Mar. 31, 2019
Mar. 31, 2017
Dec. 31, 2018
Class of Stock [Line Items]                      
Common Stock, Shares Authorized                 120,000,000   120,000,000
Common Stock, Par or Stated Value Per Share                 $ 0.01   $ 0.01
Common Stock, Shares, Outstanding                 45,575,737   45,578,878
Preferred Stock, Shares Authorized                 9,994,184   9,994,184
Preferred Stock, Par or Stated Value Per Share                 $ 0.01   $ 0.01
Convertible Preferred Stock, Shares Issued upon Conversion   1,330,000       20,426,250          
Proceeds from Issuance or Sale of Equity   $ 8,800,000       $ 10,100,000          
Sale of Stock, Number of Shares Issued in Transaction               1,319,289      
Sale of Stock, Consideration Received on Transaction             $ 3,285,798        
Proceeds from Issuance of Common Stock                   $ 1,800,000  
Issuance of Common Stock, Description   the Company is restricted from issuing any shares pursuant to the ATM Agreement for a period of twenty-four months following the closing date of the offering. However, this restriction is suspended for any sale of shares of Common Stock under the ATM Agreement that is above $3.00 per share.                  
Restricted Stock [Member]                      
Class of Stock [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 1,785,000   1,785,000
Warrant [Member]                      
Class of Stock [Line Items]                      
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.50       $ 0.32          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   6,666,667       35,156,250          
Common Stock [Member]                      
Class of Stock [Line Items]                      
Stock Issued During Period, Shares, New Issues   5,336,667       14,730,000       642,150  
Convertible Preferred Stock, Shares Issued upon Conversion 880,000 450,000 3,263,750 3,263,750 3,263,750 4,375,000          
Series A Preferred Stock [Member]                      
Class of Stock [Line Items]                      
Preferred Stock, Par or Stated Value Per Share                 $ 0.01   $ 0.01
Preferred Stock, Shares Issued                 0   0
Preferred Stock, Shares Outstanding                 0   0
Common Stock, Other Shares, Outstanding                 0    
Preferred Stock Designated Shares                 3,750   3,750
Series B Preferred Stock [Member]                      
Class of Stock [Line Items]                      
Preferred Stock, Par or Stated Value Per Share                 $ 0.01   $ 0.01
Stock Issued During Period, Shares, New Issues   1,995                  
Preferred Stock, Shares Issued                 0   0
Preferred Stock, Shares Outstanding                 0   0
Conversion of Stock, Shares Converted 1,320 675                  
Common Stock, Other Shares, Outstanding                 0    
Preferred Stock Designated Shares                 10,000   10,000
Series C Preferred Stock [Member]                      
Class of Stock [Line Items]                      
Stock Issued During Period, Shares, New Issues           6,536.4          
Preferred Stock, Shares Issued                 4,092    
Preferred Stock, Shares Outstanding                 4,092    
Conversion of Stock, Shares Converted     1,044.4 1,044.4 1,044.4 1,400          
Common Stock, Other Shares, Outstanding                 12,787,500    
Preferred Stock Designated Shares                 10,000