Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015	Nov. 01, 2014
Class of Stock [Line Items]
Allowance For Doubtful Accounts Receivable Current	$ 1,542	$ 1,542	$ 1,741
Preferred Stock Par Or Stated Value Per Share	$ 100	$ 100	$ 100
Preferred Stock Shares Authorized	100,000	100,000	100,000
Preferred Stock Shares Issued	0	0	0
Common Class B [Member]
Class of Stock [Line Items]
Common Stock Shares Authorized	15,000,000	15,000,000	15,000,000
Common Stock Shares Issued	1,743,525	1,743,525	1,743,525
Common Stock Par Or Stated Value Per Share	$ 0.033	$ 0.033	$ 0.033
Common Class A [Member]
Class of Stock [Line Items]
Common Stock Shares Authorized	50,000,000	50,000,000	50,000,000
Common Stock Shares Issued	26,155,617	26,174,684	26,168,286
Common Stock Par Or Stated Value Per Share	$ 0.033	$ 0.033	$ 0.033