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Investment in Yogurt Mountain	9 Months Ended
Investment in Yogurt Mountain	Oct. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investment in Yogurt Mountain	Investment in Yogurt Mountain The Company increased its ownership percentage in Yogurt Mountain on December 23, 2014 from 50% to 50.1%, with the remaining 49.9% ownership held by Anderson Private Capital Partners I, L.P. On July 19, 2013, the Company increased its ownership from 40% to 50%. Prior to July 19, 2013, the Company accounted for this investment as an equity method investment. From July 19, 2013 to December 23, 2014, the company accounted for this investment as a VIE. Subsequent to December 23, 2014, the Company has also accounted for this investment as a voting interest entity. As both a VIE and a voting interest entity, the Company has consolidated Yogurt Mountain in its results of operations. The Company’s investment in Yogurt Mountain totaled approximately $2.9 million for the thirty-nine weeks ended October 31, 2015, representing the Company’s maximum exposures to loss. The assets and liabilities of Yogurt Mountain were not material to the Company’s consolidated financial statements. Creditors of Yogurt Mountain do not have recourse against the general credit of the Company.