Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details Narrative)

v3.19.1
Subsequent Events (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 25, 2019
Dec. 31, 2017
Dec. 31, 2018
Oct. 12, 2017
Jul. 31, 2017
Jul. 05, 2017
Jun. 21, 2017
Jun. 16, 2017
Mar. 22, 2017
Jan. 25, 2017
Common stock, par value   $ 0.01 $ 0.01              
Number of warrants issued to purchase common stock         875,000          
Exercise price of warrants       $ 1.80   $ 1.25 $ 1.25   $ 4.69 $ 4.69
Proceeds from issuance from offering   $ 29,900                
Underwriter Warrants[Member]                    
Number of warrants issued to purchase common stock               2,600,000    
Exercise price of warrants     $ 1.32              
Subsequent Event [Member] | Underwriting Agreement [Member] | H.C. Wainwright & Co., LLC [Member]                    
Number of shares sold in transaction 9,333,334                  
Common stock, par value $ 0.01                  
Number of options granted during period 1,400,000                  
Options exercisable term 30 days                  
Purchase price of options $ 0.75                  
Sale of stock, price per share $ 0.6975                  
Subsequent Event [Member] | Underwriting Agreement [Member] | H.C. Wainwright & Co., LLC [Member] | Underwriter Warrants[Member]                    
Number of warrants issued to purchase common stock 654,334                  
Percentage on aggregate number of firm shares issued 7.00%                  
Exercise price of warrants $ 0.9375                  
Percentage on public offering price issued 125.00%                  
Proceeds from issuance from offering $ 6,100