Consolidated Balance Sheets (Parentheticals) - USD ($)	Apr. 30, 2022	Jan. 29, 2022
Class of Stock [Line Items]
Allowance For Doubtful Accounts Receivable Current	$ 801,000	$ 803,000
Preferred Stock Par Or Stated Value Per Share	$ 100	$ 100
Preferred Stock Shares Authorized	100,000	100,000
Preferred Stock Shares Issued	0	0
Common Class B [Member]
Class of Stock [Line Items]
Common Stock Shares Authorized	15,000,000	15,000,000
Common Stock Shares Issued	1,763,652	1,763,652
Common Stock Par Or Stated Value Per Share	$ 0.033	$ 0.033
Common Class A [Member]
Class of Stock [Line Items]
Common Stock Shares Authorized	50,000,000	50,000,000
Common Stock Shares Issued	19,223,633	19,824,093
Common Stock Par Or Stated Value Per Share	$ 0.033	$ 0.033