Segment Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Oct. 31, 2021 USD ($) item	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)
Schedule Of Revenues By Geographic Area [Line Items]
Number of identified business segment | item	1
Revenues	$ 69,585	$ 70,871	$ 60,752
Financial Service, Other [Member]
Schedule Of Revenues By Geographic Area [Line Items]
Revenues	$ 19,800	$ 20,400	$ 15,100