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Debt Securities (Details) - Schedule of contractual maturities of available-for-sale debt securities
$ in Thousands
Oct. 31, 2020
USD ($)
Schedule of contractual maturities of available-for-sale debt securities [Abstract]  
Within one year $ 12,644
After one year through five years 4,017
After five years through ten years 5,983
After ten years 1,246
Total $ 23,890