XML 55 R44.htm IDEA: XBRL DOCUMENT v3.19.1
COMMON STOCK, TRANSACTIONS (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
May 30, 2018
Sep. 30, 2018
Jun. 30, 2018
May 31, 2018
Jan. 31, 2018
Mar. 31, 2019
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2018
Apr. 16, 2018
Common stock disclosures                    
Common stock, par value (in dollars per share)           $ 0.00001     $ 0.00001 $ 0.00001
Proceeds from issuance of common stock and warrants, net of issuance costs               $ 2,510    
Fair value adjustment of warrants               (12)    
Number of warrants outstanding           7,673,130        
Issuance of common stock to 401(k) plan               $ 6    
401(k)                    
Common stock disclosures                    
Company contributions to employee 401(k) accounts           $ 12        
2018 Series A Warrant Exercise price $2.00                    
Common stock disclosures                    
Exercise price (in dollars per unit)           $ 2.00        
Number of warrants outstanding           7,586,711        
2018 Warrants                    
Common stock disclosures                    
Fair value adjustment of warrants   $ 764                
Warrant reclassified to equity   $ 14,700                
Common Stock                    
Common stock disclosures                    
Issuance of stock in public offerings (in shares)               190,664    
Issuance of common stock to 401(k) plan (in shares)               440    
Common Stock | 401(k)                    
Common stock disclosures                    
Aggregate number of shares reserved for issuance       4,100            
Number of additional shares reserved       4,000            
Issuance of common stock to 401(k) plan (in shares)                 440  
Issuance of common stock to 401(k) plan                 $ 6  
Underwritten Public Offering, June 2018                    
Common stock disclosures                    
Proceeds from issuance of common stock and warrants, net of issuance costs     $ 13,500              
Reclassification of derivative warrant liability to additional paid-in capital     $ 287              
Derivative loss             $ 12,000      
Underwritten Public Offering, June 2018 | 2018 Series A Warrant Exercise price $2.00                    
Common stock disclosures                    
Number of shares/warrants comprised in a unit (in shares)     1              
Exercise price (in dollars per unit)     $ 2.00       $ 2.00      
Warrant expiration term (in years)     5 years       5 years      
Proceeds from exercise of warrants                 69  
Number of warrants outstanding           0        
Underwritten Public Offering, June 2018 | 2018 Series B Warrant Exercise price $.01                    
Common stock disclosures                    
Exercise price (in dollars per unit)     $ 0.01       $ 0.01      
Warrant expiration term (in years)     20 years       20 years      
Proceeds from exercise of warrants                 $ 62  
Number of warrants outstanding           0     0  
Reclassification of derivative warrant liability to additional paid-in capital           $ 10,600        
Derivative loss           $ 1,200     $ 1,200  
Underwritten Public Offering, June 2018 | 2018 Warrants                    
Common stock disclosures                    
Proceeds from exercise of warrants                 $ 131  
Underwritten Public Offering, June 2018 | Common Stock                    
Common stock disclosures                    
Number of shares/warrants comprised in a unit (in shares)     1              
Number of shares of common stock to be purchased by each warrant     1       1      
Underwritten Public Offering, June 2018 | Common Stock | 2018 Series A Warrant Exercise price $2.00                    
Common stock disclosures                    
Issuance of common stock upon exercise of warrants (in shares)                 34,500  
Underwritten Public Offering, June 2018 | Common Stock | 2018 Series B Warrant Exercise price $.01                    
Common stock disclosures                    
Issuance of common stock upon exercise of warrants (in shares)                 6,242,811  
Underwritten Public Offering, June 2018 | Common Stock And Warrants                    
Common stock disclosures                    
Issuance of stock in public offerings (in shares)     1,378,400              
Equity issuance (in price per unit)     $ 2.00       $ 2.00      
Pre Funded Units                    
Common stock disclosures                    
Issuance of stock in public offerings (in shares)     6,242,811              
Equity issuance (in price per unit)     $ 1.99       $ 1.99      
Pre Funded Units | 2018 Series A Warrant Exercise price $2.00                    
Common stock disclosures                    
Number of shares/warrants comprised in a unit (in shares)     1              
Pre Funded Units | 2018 Series B Warrant Exercise price $.01                    
Common stock disclosures                    
Number of shares/warrants comprised in a unit (in shares)     1              
Pre Funded Units | Common Stock                    
Common stock disclosures                    
Number of shares of common stock to be purchased by each warrant     1       1      
Purchase and registration rights agreement | Common Stock                    
Common stock disclosures                    
Issuance of stock in public offerings (in shares) 17,192               256,804  
Aggregate proceeds could be received         $ 15,000          
Term         24 months          
Deferred offering costs $ 627                  
Proceeds from issuance of common stock, net of issuance costs                 $ 3,100  
Purchase and registration rights agreement | Common Stock | Maximum                    
Common stock disclosures                    
Aggregate number of shares reserved for issuance 1,200,000