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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2023   876 4,349      
Beginning balance at Dec. 31, 2023 $ 3,051 $ 0 $ 0 $ 156,369 $ (3) $ (153,315)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock (in shares)     283      
Issuance of common stock 450   $ 0 450    
Conversion of advanced capital contribution to common stock (in shares)     94      
Conversion of advanced capital contribution to common stock 141     141    
Stock-based compensation 1     1    
Net loss (418)         (418)
Ending balance (in shares) at Mar. 31, 2024   876 4,726      
Ending balance at Mar. 31, 2024 3,225 $ 0 $ 0 156,961 (3) (153,733)
Beginning balance (in shares) at Dec. 31, 2023   876 4,349      
Beginning balance at Dec. 31, 2023 3,051 $ 0 $ 0 156,369 (3) (153,315)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (1,288)          
Ending balance (in shares) at Sep. 30, 2024   876 5,261      
Ending balance at Sep. 30, 2024 3,207 $ 0 $ 1 157,812 (3) (154,603)
Beginning balance (in shares) at Dec. 31, 2023   876 4,349      
Beginning balance at Dec. 31, 2023 3,051 $ 0 $ 0 156,369 (3) (153,315)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (1,600)          
Ending balance (in shares) at Dec. 31, 2024   876 5,261      
Ending balance at Dec. 31, 2024 2,915 $ 0 $ 1 157,814 (3) (154,897)
Beginning balance (in shares) at Mar. 31, 2024   876 4,726      
Beginning balance at Mar. 31, 2024 3,225 $ 0 $ 0 156,961 (3) (153,733)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock (in shares)     535      
Issuance of common stock 851     850    
Net loss (554)         (554)
Ending balance (in shares) at Jun. 30, 2024   876 5,261      
Ending balance at Jun. 30, 2024 3,522 $ 0 $ 1 157,811 (3) (154,287)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation 1     1    
Net loss (316)         (316)
Ending balance (in shares) at Sep. 30, 2024   876 5,261      
Ending balance at Sep. 30, 2024 3,207 $ 0 $ 1 157,812 (3) (154,603)
Beginning balance (in shares) at Dec. 31, 2024   876 5,261      
Beginning balance at Dec. 31, 2024 2,915 $ 0 $ 1 157,814 (3) (154,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock (in shares)     103      
Issuance of common stock 200   $ 0 200    
Stock-based compensation (4)     (4)    
Net loss (268)         (268)
Ending balance (in shares) at Mar. 31, 2025   876 5,364      
Ending balance at Mar. 31, 2025 2,843 $ 0 $ 1 158,010 (3) (155,165)
Beginning balance (in shares) at Dec. 31, 2024   876 5,261      
Beginning balance at Dec. 31, 2024 2,915 $ 0 $ 1 157,814 (3) (154,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (671)          
Ending balance (in shares) at Sep. 30, 2025   876 5,739      
Ending balance at Sep. 30, 2025 3,140 $ 0 $ 1 158,710 (3) (155,568)
Beginning balance (in shares) at Mar. 31, 2025   876 5,364      
Beginning balance at Mar. 31, 2025 2,843 $ 0 $ 1 158,010 (3) (155,165)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock (in shares)     111      
Issuance of common stock 200   $ 0 200    
Net loss (231)         (231)
Ending balance (in shares) at Jun. 30, 2025   876 5,475      
Ending balance at Jun. 30, 2025 2,812 $ 0 $ 1 158,210 (3) (155,396)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock (in shares)     264      
Issuance of common stock 500     500    
Net loss (172)         (172)
Ending balance (in shares) at Sep. 30, 2025   876 5,739      
Ending balance at Sep. 30, 2025 $ 3,140 $ 0 $ 1 $ 158,710 $ (3) $ (155,568)