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STOCK-BASED COMPENSATION - Summary of Change in Number of Non-Vested Options to Purchase Shares of Common Stock (Details) - $ / shares
shares in Thousands
 3 Months Ended
Apr. 30, 2023
Apr. 30, 2022
STOCK-BASED COMPENSATION    
Shares, Non-vested, Beginning balance 194  
Shares, Granted 10  
Shares, Vested (75)  
Shares, Forfeitures (1)  
Shares, Non-vested, Ending balance 128  
Shares, Non-vested 128 239
Weighted Average Fair Value, Non-vested, Beginning balance $ 7.27  
Weighted Average Fair Value, Granted 8.12  
Weighted Average Fair Value, Vested 6.62  
Weighted Average Fair Value, Forfeitures 5.68  
Weighted Average Fair Value, Non-vested, Ending balance 7.72  
Weighted Average Fair Value, Non-vested $ 7.72 $ 7.45