Schedule II - Valuation and Qualifying Accounts and Reserves (Details) $ in Thousands	12 Months Ended
	Oct. 31, 2017 USD ($)
October 31, 2017
Balance at Beginning of Period	$ 664
Charged to/ (Recovered from) Costs and Expenses	(123)
Charged to Other Accounts	0
Deductions	98	[1]
Balance at End of Period	639
October 31, 2016
Balance at Beginning of Period	739
Charged to/ (Recovered from) Costs and Expenses	(15)
Charged to Other Accounts	0
Deductions	60	[1]
Balance at End of Period	664
October 31, 2015
Balance at Beginning of Period	878
Charged to/ (Recovered from) Costs and Expenses	(13)
Charged to Other Accounts	0
Deductions	126	[1]
Balance at End of Period	739
October 31, 2017
Balance at Beginning of Period	2,067
Charged to/ (Recovered from) Costs and Expenses	515
Charged to Other Accounts	0
Deductions	300
Balance at End of Period	2,282
October 31, 2016
Balance at Beginning of Period	1,485
Charged to/ (Recovered from) Costs and Expenses	587
Charged to Other Accounts	0
Deductions	5
Balance at End of Period	2,067
October 31, 2015
Balance at Beginning of Period	1,225
Charged to/ (Recovered from) Costs and Expenses	402
Charged to Other Accounts	0
Deductions	142
Balance at End of Period	$ 1,485

[1] Receivable write-offs.