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Stock-Based Compensation, (Non-vested Stock Options and SARs) (Details) (Non Vested Stock Options And SARS [Member], USD $)
3 Months Ended
May 02, 2015
Non Vested Stock Options And SARS [Member]
 
Number of Shares [Roll Forward]  
Non-vested, beginning of period (in shares) 69,763ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Vested (in shares) (69,563)ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsVestedInPeriod
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Forfeited (in shares) 0ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsForfeituresInPeriod
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Non-vested, end of period (in shares) 200ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Weighted Average Grant Date Fair Value [Abstract]  
Non-vested, beginning of period (in dollars per share) $ 8.69ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsOutstandingWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Vested (in dollars per share) $ 8.69ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Forfeited (in dollars per share) $ 0.00ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsForfeitedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember
Non-vested, end of period (in dollars per share) $ 7.21ssi_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedOptionsAndSarsOutstandingWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ssi_NonVestedStockOptionsAndSarsMember