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Note 5 - Segment Reporting - Net Sales and Property and Equipment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jan. 29, 2022
Jan. 29, 2022
Jan. 30, 2021
Jan. 29, 2022
Jan. 30, 2021
May 01, 2021
Net sales $ 139,558 $ 139,558 $ 94,139 $ 448,767 $ 365,150  
Property and equipment, net of accumulated depreciation 58,262 58,262   58,262   $ 58,682
UNITED STATES            
Net sales   112,389 78,152 374,692 314,674  
Property and equipment, net of accumulated depreciation 50,271 50,271   50,271   50,130
Non-US [Member]            
Net sales   27,169 $ 15,987 74,075 $ 50,476  
Property and equipment, net of accumulated depreciation $ 7,991 $ 7,991   $ 7,991   $ 8,552