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Fair Value Measurements (Details) - USD ($)
Apr. 30, 2016
Jan. 30, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]    
Restricted Cash and Investments, Current $ 450,000 $ 450,000
Long term, Total Credit Facility 89,075,000  
Long-term Line of Credit, Noncurrent 84,432,000 70,271,000
Indefinite-Lived License Agreements 12,000,000 12,000,000
Operating and Broadcast Rights [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Indefinite-Lived License Agreements $ 12,000,000 $ 12,000,000