Accrued Liabilities (Details) - USD ($)	Jan. 30, 2016	Jan. 31, 2015
Accrued Liabilities, Current [Abstract]
Accrued cable access fees	$ 15,739,000	$ 14,669,000
Accrued salaries and related	5,661,000	10,089,000
Finite-Lived Intangible Assets, Gross	1,103,000	1,103,000
Reserve for product returns	4,726,000	5,585,000
Other	9,216,000	6,340,000
Accrued liabilities	$ 35,342,000	$ 36,683,000