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COMMON STOCK, STOCK-BASED COMPENSATION AND WARRANTS - Stock option activity (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Shares    
Outstanding, beginning of the year 12,341,907  
Granted 787,000  
Exercised (11,650)  
Forfeited (110,985)  
Expired (255,552)  
Outstanding, end of the year 12,750,720 12,341,907
Weighted Average Exercise Price per Share    
Outstanding, beginning of the year $ 3.55  
Granted 1  
Exercised 0.96  
Forfeited 2.09  
Expired 6.15  
Outstanding, end of the year $ 3.36 $ 3.55
Weighted Average Remaining Contractual Life (Years)    
Outstanding, beginning of the year   6 years 9 months 21 days
Granted 0 years  
Exercised 0 years  
Forfeited 0 years  
Expired 0 years  
Outstanding, end of the year 6 years 4 months 13 days