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Shareholders' Equity - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, amount recognized $ 48us-gaap_AllocatedShareBasedCompensationExpense $ 15us-gaap_AllocatedShareBasedCompensationExpense $ 21us-gaap_AllocatedShareBasedCompensationExpense $ 31us-gaap_AllocatedShareBasedCompensationExpense
2005 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, options granted     90,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_PlanNameAxis
= ssy_TwoThousandFiveEquityIncentivePlanMember		 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_PlanNameAxis
= ssy_TwoThousandFiveEquityIncentivePlanMember
2011 Director Stock Option Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, options granted     0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_PlanNameAxis
= ssy_StockIncentivePlanTwoThousandElevenMember		 21,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_PlanNameAxis
= ssy_StockIncentivePlanTwoThousandElevenMember