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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ DEFICIT - USD ($)
$ in Thousands
Total
Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive (Loss) Income
Preferred stock, beginning balance (in shares) at Dec. 31, 2023   25,000        
Beginning balance at Dec. 31, 2023 $ (102,105) $ 0 $ 12 [1] $ 810,138 [1] $ (906,928) $ (5,327)
Common stock, beginning balance, shares (in shares) at Dec. 31, 2023 [1]     11,879,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 5,138       5,138  
Foreign currency translation adjustment (1,385)         (1,385)
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (in shares) [1]     177,000      
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld 207     207 [1]    
Issuance of common stock warrants in connection with debt restructurings 5,342     5,342 [1]    
Issuance of common stock in connection with debt restructurings (in shares) [1]     487,000      
Issuance of common stock in connection with debt restructurings 4,925   $ 1 [1] 4,924 [1]    
Share-based compensation 2,815     2,815 [1]    
Preferred stock dividends 0     2,425 [1] (2,425)  
Preferred stock, ending balance (in shares) at Sep. 30, 2024   25,000        
Ending balance at Sep. 30, 2024 (85,063) $ 0 $ 13 [2] 825,851 [1] (904,215) (6,712)
Common stock, ending balance, shares (in shares) at Sep. 30, 2024 [1]     12,543,000      
Preferred stock, beginning balance (in shares) at Jun. 30, 2024   25,000        
Beginning balance at Jun. 30, 2024 (101,763) $ 0 $ 12 [2] 816,002 [2] (912,357) (5,420)
Common stock, beginning balance, shares (in shares) at Jun. 30, 2024 [2]     11,910,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 8,969       8,969  
Foreign currency translation adjustment (1,292)         (1,292)
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (in shares) [2]     146,000      
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld 213     213 [2]    
Issuance of common stock warrants in connection with debt restructurings 2,656     2,656 [2]    
Issuance of common stock in connection with debt restructurings (in shares) [2]     487,000      
Issuance of common stock in connection with debt restructurings 4,925   $ 1 [2] 4,924 [2]    
Share-based compensation 1,229     1,229 [2]    
Preferred stock dividends 0     827 [2] (827)  
Preferred stock, ending balance (in shares) at Sep. 30, 2024   25,000        
Ending balance at Sep. 30, 2024 (85,063) $ 0 $ 13 [2] 825,851 [1] (904,215) (6,712)
Common stock, ending balance, shares (in shares) at Sep. 30, 2024 [1]     12,543,000      
Preferred stock, beginning balance (in shares) at Dec. 31, 2024   25,000        
Beginning balance at Dec. 31, 2024 $ (12,858) $ 0 $ 15 [1] 892,534 [1] (905,625) 218
Common stock, beginning balance, shares (in shares) at Dec. 31, 2024 14,990,712   14,991,000 [1]      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) $ 369       369  
Foreign currency translation adjustment 147         147
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (in shares) [1]     222,000      
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (481)     (481) [1]    
Share-based compensation 5,105     5,105 [1]    
Preferred stock dividends 0     2,650 [1] (2,650)  
Preferred stock, ending balance (in shares) at Sep. 30, 2025   25,000        
Ending balance at Sep. 30, 2025 $ (7,718) $ 0 $ 15 [1] 899,808 [2] (907,906) 365
Common stock, ending balance, shares (in shares) at Sep. 30, 2025 15,212,522   15,213,000 [2]      
Preferred stock, beginning balance (in shares) at Jun. 30, 2025   25,000        
Beginning balance at Jun. 30, 2025 $ (10,496) $ 0 $ 15 [2] 897,591 [2] (908,435) 333
Common stock, beginning balance, shares (in shares) at Jun. 30, 2025 [2]     15,043,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 1,432       1,432  
Foreign currency translation adjustment 32         32
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (in shares) [2]     170,000      
Exercises of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan, net of taxes withheld (536)     (536) [2]    
Share-based compensation 1,850     1,850 [2]    
Preferred stock dividends 0     903 [2] (903)  
Preferred stock, ending balance (in shares) at Sep. 30, 2025   25,000        
Ending balance at Sep. 30, 2025 $ (7,718) $ 0 $ 15 [1] $ 899,808 [2] $ (907,906) $ 365
Common stock, ending balance, shares (in shares) at Sep. 30, 2025 15,212,522   15,213,000 [2]      
[1] Adjusted retroactively for reverse stock split that occurred on January 24, 2024, see Note 1
[2] Adjusted retroactively for reverse stock split that occurred on January 24, 2024, see Note 1