Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Oct. 28, 2023	Apr. 29, 2023
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	150,000	150,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	101,766,058	101,727,658
Common stock, shares (in shares)	8,374,112	8,374,112
Series C Preferred Stock [Member]
Series C preferred stock, shares (in shares)	150,000	150,000