Asset Impairment and Restructuring Charges Recovery of Impairment Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jan. 31, 2012 Liverpool Stamping Division [Member]	Jan. 31, 2013 Mansfield Blanking Division [Member]
Restructuring Cost and Reserve [Line Items]
Recovery of Impairment Charge	$ 65	$ 7

Recovery of Impairment Charge - amount expensed in prior periods that has been recovered

No definition available.

Name:	shlo_RecoveryOfImpairmentCharge
Namespace Prefix:	shlo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration