Receivables & Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2016
Receivables [Abstract]
Trade receivables				$ 88,287	$ 82,745
Receivables from employees				161	594
Accounts receivable, gross				88,448	83,339
Allowance for accounts receivable	$ 161	$ 325	$ 325	161	393	$ 333
Accounts receivable, net				$ 88,287	$ 82,946
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for accounts receivable	393	325
Bad debt expense	262	700	46
Amounts written off	(494)	(916)	(54)
Recoveries	0	284	0
Allowance for accounts receivable	$ 161	$ 393	$ 325