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STOCK-BASED COMPENSATION - Summary of Option Activity - (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Summary of option activity - Shares      
Granted (in shares) 1,300    
Stock Option      
Total fair value of options vested $ 118 $ 239  
Stock-based compensation (in dollars) $ 62 $ 56  
Stock Options      
Summary of option activity - Shares      
Outstanding at the beginning of year (in shares)   136,568 136,568
Granted (in shares) 1,300    
Cancelled/Forfeited (in shares) (5,400)    
Outstanding at the end of period (in shares) 132,468    
Vested and Exercisable 13,368    
Vested and expected to vest at the end of period (in shares) 132,468    
Summary of option activity - Weighted Average Exercise Price      
Outstanding at the beginning of year (in dollars per shares)   $ 36.46 $ 36.46
Granted (in dollars per shares) $ 2.30    
Cancelled/Forfeited (in dollars per shares) 2.45    
Outstanding at the end of period (in dollars per shares) 37.51    
Vested and Exercisable 349.39    
Vested and expected to vest at the end of period (in dollars per share) $ 37.51    
Option activity disclosures      
Weighted Average Remaining Contractual Term - Outstanding 9 years 5 months 15 days   9 years 8 months 19 days
Weighted Average Remaining Contractual Term - Vested and expected to vest 7 years 11 months 4 days    
Stock Option      
Stock-based compensation (in dollars) $ 62 $ 48  
Total unrecognized compensation expense $ 206    
Period for unrecognized compensation expense is estimated to be recognized 1 year 3 months 29 days