v3.26.1
STOCKHOLDERS' EQUITY - Stock option activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2025
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
STOCKHOLDERS' EQUITY        
Options outstanding at beginning of period, Number of options   336,768    
Options granted, Number of options   8,500    
Options expired, Number of options   (46,885)    
Options forfeited, Number of options   (7,067)    
Options outstanding at end of period, Number of options   291,316   336,768
Options vested and expected to vest at end of period, Number of options   103,970    
Exercisable at end of period, Number of options   137,020    
Options outstanding at beginning of period, Weighted average exercise price   $ 46.21    
Options granted, Weighted average exercise price   11.32    
Options expired, Weighted average exercise price   62.73    
Options forfeited, Weighted average exercise price   13.03    
Options outstanding at end of period, Weighted average exercise price   43.34   $ 46.21
Options vested and expected to vest at end of period, Weighted average exercise price   33.66    
Exercisable at end of period, Weighted average exercise price   $ 66.34    
Options outstanding at, Weighted Average remaining contractual life   8 years 3 months   8 years 1 month 28 days
Options vested and expected to vest at end of period, Weighted Average remaining contractual life   8 years 1 month 28 days    
Exercisable at end of year, Weighted Average remaining contractual life   7 years 9 months    
Options outstanding at beginning of period, Aggregate Intrinsic value   $ 4    
Options outstanding at end of period, Aggregate Intrinsic value   2   $ 4
Exercisable at end of period, Aggregate Intrinsic value   2    
Compensation expenses   $ 1,441 $ 2,342  
Restricted stock        
STOCKHOLDERS' EQUITY        
Vesting period 4 years      
Shares accelerated for vesting   6,250    
Restricted shares granted   2,127    
Restricted stock | 2020 Plan        
STOCKHOLDERS' EQUITY        
Vesting period   10 years    
Restricted stock | 2020 Plan | Minimum        
STOCKHOLDERS' EQUITY        
Vesting period   3 years    
Officers, employees and consultants | Restricted stock | 2020 Plan        
STOCKHOLDERS' EQUITY        
Options granted, Number of options       28,750
Consultant and Employee | Restricted stock        
STOCKHOLDERS' EQUITY        
Exercise price of options       $ 12.8
Consultant and Employee | Restricted stock | Minimum        
STOCKHOLDERS' EQUITY        
Exercise price of options   $ 10.14    
Consultant and Employee | Restricted stock | Maximum        
STOCKHOLDERS' EQUITY        
Exercise price of options   $ 11.38    
Consultant and Employee | Restricted stock | 2020 Plan        
STOCKHOLDERS' EQUITY        
Options granted, Number of options   8,500   52,500
Employees | Restricted stock | 2020 Plan        
STOCKHOLDERS' EQUITY        
Options granted, Number of options       2,127
Certain service providers | Restricted stock        
STOCKHOLDERS' EQUITY        
Monthly Grant Of Shares Of The Common Stock   $ 15    
Restricted unregistered shares   0    
Compensation expenses   $ 30    
Director | Restricted stock | 2020 Plan        
STOCKHOLDERS' EQUITY        
Shares accelerated for vesting   1,750    
Restricted shares granted       1,500