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SIGNIFICANT ACCOUNTING POLICIES - Stock-based compensation expense (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
SIGNIFICANT ACCOUNTING POLICIES    
Stock-based compensation expense $ 1,346,000 $ 907,000
Options    
SIGNIFICANT ACCOUNTING POLICIES    
Stock-based compensation expense 1,316,000 857,000
RSUs    
SIGNIFICANT ACCOUNTING POLICIES    
Outstanding unamortized share-based compensation expense 3,535,000  
Unrestricted Shares of Common Stock    
SIGNIFICANT ACCOUNTING POLICIES    
Stock-based compensation expense $ 30,000 $ 50,000