Quarterly report pursuant to Section 13 or 15(d)

SHARE-BASED COMPENSATION - Activity of Stock Options (Details)

v3.23.2
SHARE-BASED COMPENSATION - Activity of Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Stock Options    
Outstanding, beginning balance (in shares) 410,477  
Forfeited (in shares) (8,029)  
Expired (in shares) (48,066)  
Outstanding, ending balance (in shares) 354,382 410,477
Vested and expected to vest (in shares) 343,849  
Vested and exercisable (in shares) 314,495  
Weighted-Average Exercise Price    
Outstanding, beginning (USD per share) $ 7.15  
Forfeited (USD per share) 11.03  
Expired (USD per share) 15.54  
Outstanding, ending (USD per share) 5.93 $ 7.15
Vested and expected to vest (USD per share) 5.79  
Vested and exercisable (USD per share) $ 5.11  
Weighted-Average Remaining Contractual Term (Years) and Aggregate Intrinsic Value    
Outstanding term 2 years 3 months 10 days 2 years 6 months 21 days
Vested and expected to vest term 2 years 3 months 25 days  
Vested and exercisable term 1 year 11 months 19 days  
Outstanding $ 0 $ 0
Vested and expected to vest 0  
Vested and exercisable $ 0