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Stock Options and Incentive Compensation Compensation Expense (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Allocated Share-based Compensation Expense $ 150us-gaap_AllocatedShareBasedCompensationExpense $ 456us-gaap_AllocatedShareBasedCompensationExpense
Decrease in Basic and Diluted Earnings Per Share $ 0.01shlo_DecreaseInBasicAndDilutedEarningsPerShare $ 0.02shlo_DecreaseInBasicAndDilutedEarningsPerShare
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 15us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized 620us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Allocated Share-based Compensation Expense 429us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RestrictedStockMember		  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 1,520us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RestrictedStockMember