Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity

v3.19.1
Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Total
Balance at Dec. 31, 2016 $ 22 $ (1,643) $ 127,736 $ (119,584) $ 39,869
Balance, shares at Dec. 31, 2016 2,230,000 54,000      
Common stock issued        
Common stock issued, shares 34        
Common stock issued through offering, net of expenses $ 135   15,734    
Common stock issued through offering, net of expenses, shares 13,568,000        
Shares issued in debt exchange $ 38   11,605    
Shares issued in debt exchange, shares 3,795,000        
Exercise of warrants for cash, net of expenses $ 83   6,778    
Exercise of warrants for cash, net of expenses, shares 8,273,000        
Treasury stock purchased   $ 10      
Treasury stock purchased, shares   (28,000)      
Issuance of warrants, net of expenses     7,212    
Reclass of warrant liability upon exercise of pre-funded warrants     2,337    
Issuance of debt exchange warrants, vendor warrants, and other     600    
Stock-based compensation expense     1,060    
Net loss       (12,216) (12,216)
Adoption of ASC 606, see Note 3      
Balance at Dec. 31, 2017 $ 278 $ (1,671) 173,062 (131,800) 39,869
Balance, shares at Dec. 31, 2017 27,900,000 64,000      
Common stock issued $ 9 1,024    
Common stock issued, shares 867,000        
Common stock issued through offering, net of expenses    
Common stock issued through offering, net of expenses, shares        
Shares issued in debt exchange    
Shares issued in debt exchange, shares        
Exercise of warrants for cash, net of expenses      
Exercise of warrants for cash, net of expenses, shares        
Treasury stock purchased $ 9 (9)
Treasury stock purchased, shares 9,000      
Issuance of warrants, net of expenses      
Reclass of warrant liability upon exercise of pre-funded warrants        
Issuance of debt exchange warrants, vendor warrants, and other        
Stock-based compensation expense 1,734 1,390
Net loss (12,189) (12,189)
Adoption of ASC 606, see Note 3 2,500 2,500
Balance at Dec. 31, 2018 $ 287 $ (1,680) $ 175,820 $ (141,489) $ 32,938
Balance, shares at Dec. 31, 2018 28,767,000 73,000