Quarterly report pursuant to Section 13 or 15(d)

SALE OF COMMON STOCK (Details Narrative)

v3.19.1
SALE OF COMMON STOCK (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Dec. 13, 2018
Dec. 11, 2018
Dec. 07, 2018
Oct. 18, 2018
May 01, 2018
Sep. 28, 2017
Mar. 31, 2019
Mar. 31, 2018
Number of options granted             113,400  
Gross proceeds from stock issuance             $ 532
Series A Convertible Preferred Stock [Member]                
Conversion of preferred stock (shares)             9,856  
Shares issue upon conversion of preferred stock (shares)             2,816,000  
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    
2016 Sales Agreement [Member] | Cowen and Company LLC [Member] | At-The-Market Offering [Member]                
Offering price per agreement               15,000
Payment of commision               $ 300
Sales Agreement [Member] | Cowen and Company LLC [Member] | At-The-Market Offering [Member]                
Offering price per agreement         $ 9,500      
Percentage of selling commission         3.00%      
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] | 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] | 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              
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            
2017 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC ("Lincoln Park") [Member]                
Number of shares issued             18,000  
Gross proceeds from stock issuance             $ 600