Common Stock Common Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Jul. 19, 2017
Class of Stock [Line Items]
Shares Issued	5,250,000
Value of Shares Issued	$ 40,227
Underwriting discounts and offering costs	$ 3,086
Maximum [Member]
Class of Stock [Line Items]
Aggregate Offering Price		$ 175,000