Annual report pursuant to Section 13 and 15(d)

Equity (Details Narrative)

v3.19.1
Equity (Details Narrative)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
May 14, 2018
USD ($)
Integer
$ / shares
shares
Jul. 08, 2016
USD ($)
$ / shares
Aug. 31, 2018
shares
Jul. 31, 2018
shares
May 31, 2018
USD ($)
shares
Jan. 31, 2017
USD ($)
$ / shares
shares
Jul. 31, 2016
USD ($)
$ / shares
shares
Mar. 31, 2018
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Sep. 07, 2018
$ / shares
Jun. 30, 2018
shares
Feb. 24, 2017
shares
Warrants to purchase of common stock shares | shares         145,834     832,000          
Warrants exercise price | $ / shares           $ 6.60              
Gross proceeds of warrants         $ 300       $ 7,577 $ 679      
Proceeds from public offering $ 15,000                        
Stock issued price per shares | $ / shares   $ 10.56                      
Preferred stock stated value | $ / shares                 $ 0.01 $ 0.01      
Common stock state value | $ / shares                 0.01 $ 0.01      
Conversion price per share | $ / shares $ 1.45                   $ 0.48    
Share price | $ / shares                 $ 3.00        
Proceeds from issuance of units $ 15,000               $ 6,749      
Preferred stock issuance costs 6,800                        
Allocated to preferred stock $ 600                        
Warrants issuance cost           $ 100              
Allocated to warrants           800              
Proceeds from warrant exercised                 1,652      
Proceeds from issuance of common stock gross           3,900              
Proceeds from issuance of common stock net           3,100     $ 3,128      
Stock issuance cost           $ 600              
Warrants expire term           5 years              
Common stock, issued | shares                 21,793,641 3,028,065      
Preferred stock, issued | shares                 4,074 0      
Fair value of excess carrying value per shares | $ / shares   $ 4.08                      
Fair value of excess carrying value   $ 2,500                      
Number of common stock received                   $ 3,128      
July 12, 2018 [Member]                          
Conversion price per share | $ / shares                 $ 0.6543        
Maximum [Member]                          
Warrants exercise price | $ / shares               $ 12          
Minimum [Member]                          
Warrants exercise price | $ / shares               $ 2.125          
Secondary Offering [Member]                          
Gross proceeds of warrants             $ 11,400            
Class of unit description             Each Class A Unit consisted of 1/12th share of common stock and one warrant to purchase 1/12th share of common stock. Each Class B Unit consisted of one share of preferred stock convertible into 83 shares of common stock and warrants to purchase 83 shares of common stock.            
Secondary Offering [Member] | Underwriter [Member]                          
Warrants to purchase of common stock shares | shares                         30,000
Public Offering [Member]                          
Stock issued price per shares | $ / shares $ 1,000                        
Debt conversion, description (i) for the first 40 trading days following the closing of this offering, $1.4512 (the "Conversion Price"), (ii) after 40 trading days but prior to the 81st trading day, the lesser of (a) the Conversion Price and (b) 87.5% of the lowest volume weighted average price for our Common Stock as reported at the close of trading on the market reporting trade prices for the Common Stock during the five trading days prior to the 41st trading day, and (iii) after 80 trading days, the lesser of (a) the Conversion Price and (b) 87.5% of the lowest volume weighted average price for our Common Stock as reported at the close of trading on the market reporting trade prices for the Common Stock during the five trading days prior to the date of the notice of conversion. In the case of (ii)(b) and (iii)(b) above, the share price shall not be less than $0.48 (the "Floor Price").                        
Conversion price per share | $ / shares $ 1.4512                        
Debt instrument trading days | Integer 40                        
Debt instrument trading percentage 87.50%                        
Share price | $ / shares $ 0.48                        
August 2018 Warrant Exercise [Member] | Secondary Offering [Member]                          
Warrants converted into shares of common stock | shares     242,063                    
July 2018 Warrant Exercise [Member] | Public Offering [Member]                          
Warrants converted into shares of common stock | shares       29,927                  
Warrant exercise | shares       29,927                  
Convertible Preferred Stock and Warrants [Member]                          
Proceeds from public offering $ 15,000                        
Warrants [Member]                          
Warrants to purchase of common stock shares | shares 758                        
Warrants exercise price | $ / shares $ 1.60                        
Warrant term 5 years                        
Common stock state value | $ / shares $ 1,100                        
Share price | $ / shares                 0.01        
Warrants issuance cost $ 6,900                        
Allocated to warrants 700                        
Warrants for derivative liability $ 700                        
Warrants [Member] | Secondary Offering [Member]                          
Warrants to purchase of common stock shares | shares           333,750 1,054,167            
Warrants exercise price | $ / shares             $ 12.00            
Series E Common Stock Purchase Warrant [Member]                          
Warrant exercise | shares               668,335          
Warrants exercise price | $ / shares               $ 12.00 2.125        
Gross proceeds of warrants               $ 1,400          
Number of shares entitled for warrants | shares               832,000          
New Warrants [Member]                          
Warrants exercise price | $ / shares               $ 2.00          
Percentage of warrant shares issued for new warrants               100.00%          
Common Stock [Member]                          
Stock issued price per shares | $ / shares                 $ 6.48        
Stock issuance cost                 $ 601 601      
Number of common stock received                   $ 8      
Number of common stock exercise, shares | shares                   741,667      
Common Stock [Member] | Secondary Offering [Member]                          
Number of shares of common stock sold | shares           741,667              
Common stock, issued | shares             438,167            
Preferred Stock [Member]                          
Convertible preferred stock shares conversion | shares                 616,000        
Stock issuance cost                 $ 668 $ 668      
Preferred stock, issued | shares                 7,392        
Number of common stock received                        
Number of common stock exercise, shares | shares                        
Preferred Stock [Member] | Secondary Offering [Member]                          
Convertible preferred stock shares conversion | shares             616,000            
Preferred stock, issued | shares             7,392            
Series B Convertible Preferred Stock [Member]                          
Convertible preferred stock shares conversion | shares         4,072             4,072  
Preferred stock stated value | $ / shares $ 1,100                        
Common Stock [Member]                          
Convertible preferred stock shares conversion | shares 11,369,900       3,086,570             3,086,570  
Preferred Stock [Member]                          
Convertible preferred stock shares conversion | shares 15,000                        
Class A Units [Member]                          
Allocated to warrants                 $ 2,400        
Proceeds from issuance of common stock gross                 4,900        
Proceeds from issuance of common stock net                 2,500        
Stock issuance cost                 300        
Class A Units [Member] | Secondary Offering [Member]                          
Convertible preferred stock shares conversion | shares             83            
Warrants to purchase of common stock shares | shares             83            
Stock issued price per shares | $ / shares             $ 1.00            
Number of shares of common stock sold | shares             5,258,000            
Class A Units [Member] | Secondary Offering [Member] | Underwriter [Member]                          
Number of shares of common stock sold | shares             1,650,000            
Class B Units [Member]                          
Warrants issuance cost                 500        
Allocated to warrants                 3,400        
Warrants for derivative liability                 5,800        
Proceeds from issuance of common stock gross                 7,000        
Proceeds from issuance of common stock net                 3,600        
Stock issuance cost                 $ 400        
Class B Units [Member] | Secondary Offering [Member] | Underwriter [Member]                          
Stock issued price per shares | $ / shares             $ 1,000            
Number of shares of common stock sold | shares             7,392            
Convertible Preferred Stock [Member]                          
Non-cash offering costs description                 The Company recorded a non-cash, deemed dividend of $6.3 million ($2.5 and $3.8 million-calculated as $0.4 million in offering costs plus $3.4 million measured as the difference between the stated value and the allocated proceeds) related to a beneficial conversion feature and accretion of a discount on convertible preferred stock.        
Non-cash, deemed dividend                 $ 6,300        
Offering costs                 400        
Proceed from convertible preferred stock                 $ 3,400        
Convertible Preferred Stock [Member] | Secondary Offering [Member]                          
Convertible preferred stock shares conversion | shares                 616,000        
Preferred stock, issued | shares                 7,392        
Number of common stock received                 $ 400        
Number of common stock exercise, shares | shares                 37,208        
July Through December of 2018 [Member] | Series B Convertible Preferred Stock [Member]                          
Convertible preferred stock shares conversion | shares                 10,926        
July Through December of 2018 [Member] | Common Stock [Member]                          
Convertible preferred stock shares conversion | shares                 17,098,973