v3.26.1
STOCK BASED COMPENSATION EXPENSE - Stock option activity (Details) - $ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Number of Outstanding Options    
Beginning balance 234,147  
Expired (31)  
Forfeited (32,453)  
Ending balance 201,663 234,147
Vested and Exercisable 201,561  
Vested and Expected to Vest 201,663  
Weighted Average Exercise Price    
Beginning balance $ 75  
Expired 15,000  
Forfeited 67.45  
Ending balance 74.77 $ 75
Vested and Exercisable 75.09  
Vested and Expected to Vest $ 74.77  
Additional disclosures    
Weighted Average Remaining Contractual Years 6 years 6 months 7 years
Weighted Average Remaining Contractual Years, Vested and Exercisable 6 years 4 months 28 days  
Weighted Average Remaining Contractual Years, Vested and Expected to Vest 6 years 6 months  
Share price $ 0.21  
2007 and 2017 Stock Plans    
Number of Outstanding Options    
Beginning balance 200,000  
Ending balance 200,000 200,000