Note 3 - Stock-based Compensation - Non-vested Restricted Stock Activity (Details) - Restricted Stock [Member]	3 Months Ended
	Sep. 26, 2021 $ / shares shares
Non-vested (in shares) | shares	1,638,806
Non-vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 18.12
Granted (in shares) | shares	7,500
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 31.76
Vested (in shares) | shares	(172,500)
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 11.90
Forfeited (in shares) | shares	(6,604)
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 21.89
Non-vested (in shares) | shares	1,467,202
Non-vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 18.90