Note N - Lease Liabilities - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 27, 2020	Mar. 29, 2019	Mar. 27, 2020	Mar. 29, 2019
Amortization of right-of-use assets	$ 49		$ 127
Interest on lease liabilities	14		40
Operating lease cost	789	872	2,384	2,603
Short-term lease cost	18	1	43	23
Variable lease cost	17	11	42	16
Total lease cost	887	884	2,636	2,642
Less: Sublease income	(53)	(2)	(159)	(18)
Net lease cost	$ 834	$ 882	$ 2,477	$ 2,624