Asset Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 241	$ 2,031	$ 0
Valley City Steel [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges		273
Impaired Long-Live Assets Held and Used [Member]
Restructuring Cost and Reserve [Line Items]
Other Asset Impairment Charges		476
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of Long-Lived Assets to be Disposed of	200	$ 1,282
Asset impairment charges	200
Dickson, Tennessee Facility [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 41