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CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Details) - Held-to-maturity Securities
9 Months Ended 12 Months Ended
Oct. 31, 2022
Jan. 31, 2022
Cash and Cash Equivalents    
Maturity period 1 year 1 year
Weighted average annual interest rates of CDs (as a percent) 2.50% 0.10%