Annual report pursuant to Section 13 and 15(d)

SALE OF COMMON STOCK (Details Narrative)

v3.19.1
SALE OF COMMON STOCK (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended 15 Months Ended
Dec. 13, 2018
Dec. 11, 2018
Dec. 07, 2018
Oct. 18, 2018
May 01, 2018
Sep. 28, 2017
Apr. 13, 2017
Apr. 04, 2017
Mar. 30, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Number of options granted                   101,968 26,000  
Gross proceeds from stock issuance                   $ 12,714 $ 18,505  
Beneficial conversion feature in connection with sale of Series A Convertible preferred stock and deemed dividend                   $ 3,266    
Series A Convertible Preferred Stock [Member]                        
Issuance of Series A Convertible preferred stock and common stock warrants in December 2018 (in shares)                   11,984    
Conversion of preferred stock (shares)                   2,128    
Shares issue upon conversion of preferred stock (shares)                   608,000    
Purchase Agreement and Registration Rights Agreement [Member] | Lincoln Park Capital Fund, LLC ("Lincoln Park") [Member]                        
Commitment to purchase shares under agreement       $ 15,000,000   $ 15,000,000            
Issuance of common stock for commitment to purchase       $ 245   $ 300,000            
Issuance of common stock for commitment to purchase (shares)       35,000   7,304            
Limitation on sale of common shares outstanding (percent)           19.99%            
Limitation on sale of common shares outstanding (shares)           150,000            
Underwriting Agreement [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member] | Class A Units [Member]                        
Share price (in dollars per share)     $ 3.50                  
Number of common shares per unit     1                  
Number of warrants to purchase to common stock per unit     1                  
Underwriting Agreement [Member] | Class A Units [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member]                        
Issuance of common stock and common stock warrants in December 2018 (in shares)     861,710                  
Number of options granted     642,856                  
Number of options granted, term     45 days                  
Number of warrants granted     642,856                  
Underwriting Agreement [Member] | Class B Units [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member]                        
Issuance of Series A Convertible preferred stock and common stock warrants in December 2018 (in shares)     11,984                  
Share price (in dollars per share)     $ 1,000                  
Number of warrants to purchase to common stock per unit     285.7143                  
Number of convertible preferred stock per unit     1                  
Warrants expiration period     5 years                  
Conversion price per share     $ 3.50                  
Underwriting Agreement [Member] | Over-Allotment Option [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member]                        
Number of shares issued 250,000                      
Net proceeds from issuance of common stock $ 800                      
Underwriting discount $ 100                      
Underwriting discount per share (in dollars per share) $ 0.24                      
Beneficial conversion feature in connection with sale of Series A Convertible preferred stock and deemed dividend $ 3,300                      
Underwriting Agreement [Member] | Over-Allotment Option [Member] | Class A Units [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member]                        
Number of shares issued   640,000                    
Net proceeds from issuance of common stock   $ 6                    
Underwriting Agreement [Member] | Public Offering [Member] | Class A Units [Member] | Alliance Global Partners Dawson And James Securitie Inc [Member]                        
Net proceeds from issuance of common stock   13,600                    
Underwriting discount   $ 1,100                    
Underwriting discount per share (in dollars per share)   $ 0.24                    
Discount to the public offering price   7.00%                    
Underwriting discount and other offering expenses   $ 400                    
Underwriting Agreement [Member] | Underwriters (2017 Underwriters) [Member] | April 2017 Financing [Member]                        
Common shares to be offered under agreement (shares)                 180,000      
Share price (in dollars per share)                 $ 44.50      
Net proceeds from issuance of common stock               $ 7,200        
Underwriting discount               $ 600        
Underwriting discount per share (in dollars per share)               $ 3.12        
Offering expenses               $ 200        
Percentage of underwriting discount               7.00%        
Underwriting Agreement [Member] | Underwriters (2017 Underwriters) [Member] | Over-Allotment Option [Member]                        
Number of options granted                 27,000      
April2017FinancingMember | Underwriters (2017 Underwriters) [Member] | Over-Allotment Option [Member]                        
Number of shares issued             270,000          
Net proceeds from issuance of common stock             $ 1,100          
Underwriting discount             $ 100          
Underwriting discount per share (in dollars per share)             $ 3.12          
2016 Sales Agreement [Member] | Cowen and Company LLC [Member] | At-The-Market Offering [Member]                        
Offering price per agreement                     $ 15,000  
Number of shares issued                     149,000  
Net proceeds from issuance of common stock                     $ 9,100  
Payment of commision                     $ 300  
Sales Agreement [Member] | Cowen and Company LLC [Member] | At-The-Market Offering [Member]                        
Offering price per agreement         $ 9,500              
Number of shares issued                   593,000    
Net proceeds from issuance of common stock                   $ 6,900    
Percentage of selling commission         3.00%              
Payment of commision                   $ 200    
2017 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC ("Lincoln Park") [Member]                        
Number of shares issued                   118,000   143,000
Gross proceeds from stock issuance                   $ 2,400   $ 3,500