Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Summary of Business (Details Textual)

v2.4.1.9
Basis of Presentation and Summary of Business (Details Textual)
Apr. 01, 2013
Mar. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Equity method investment, ownership percentage   40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
Percentage of Common Stock Purchased 60.00%snhy_PurchaseOfRemainingInterestInEquityInvestee