Nature of Operations Nature of operations (Details) $ / shares in Units, $ in Thousands	3 Months Ended
Jan. 31, 2017 USD ($) $ / shares
Nature of operations [Abstract]
Business Acquisition, Share Price \| $ / shares	$ 37.25
Approximate value of the transaction	$ 4,500,000
Maximum Quarterly Borrowing	$ 10,000

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

No definition available.

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant