XML 64 R53.htm IDEA: XBRL DOCUMENT v3.20.4
Debt Securities (Details) - Schedule of contractual maturities of available-for-sale debt securities
$ in Thousands
Jan. 31, 2021
USD ($)
Schedule of contractual maturities of available-for-sale debt securities [Abstract]  
Within one year $ 9,688
After one year through five years 6,447
After five years through ten years 4,611
After ten years 755
Total $ 21,501