Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity

v3.8.0.1
Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive (Loss) Income [Member]
Total
Balance at Dec. 31, 2015 $ 19 $ (8,432) $ 132,690 $ (111,252) $ 13
Balance, shares at Dec. 31, 2015 1,870,000 104,000        
Common stock issued        
Common stock issued, shares          
Common stock issued through offerings, net of expenses $ 2 857
Common stock issued through offerings, net of expenses, shares 200,000          
Shares issued in debt exchange      
Shares issued in debt exchange, shares          
Exercise of warrants for cash, net of expenses $ 1 15
Exercise of warrants for cash, net of expenses, shares 160,000          
Issuance of debt exchange warrants, vendor warrants, and other          
Treasury stock purchased          
Treasury stock purchased, shares          
Issuance of warrants, net of expenses     832    
Stock-based compensation expense     131      
Treasury stock reissued $ 6,789 (6,789)
Treasury stock reissued, shares (50,000)        
Unrealized holding loss on available-for-sale securities, net of tax        
Realized loss, net of tax         (13)  
Net loss       (8,332)   (8,332)
Balance at Dec. 31, 2016 $ 22 $ (1,643) 127,736 (119,584) 6,531
Balance, shares at Dec. 31, 2016 2,230,000 54,000        
Common stock issued    
Common stock issued, shares 34,000          
Common stock issued through offerings, net of expenses $ 135 15,734    
Common stock issued through offerings, 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          
Reclass of warrant liability upon exercise of pre-funded warrants     2,337      
Issuance of debt exchange warrants, vendor warrants, and other 600    
Treasury stock purchased $ (28)    
Treasury stock purchased, shares 10,000        
Issuance of warrants, net of expenses 7,212   7,212
Stock-based compensation expense 1,060    
Treasury stock reissued        
Treasury stock reissued, shares          
Unrealized holding loss on available-for-sale securities, net of tax        
Realized loss, net of tax          
Net loss (12,216) (12,216)
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