Quarterly Results Change is assumptions and estimates (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Oct. 31, 2013	Oct. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
current quarter change in assumptions and estimates	$ (307)	$ 80

current quarter change in assumptions and estimates

No definition available.

Name:	shlo_CurrentQuarterChangeInAssumptionsAndEstimates
Namespace Prefix:	shlo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration