Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 02, 2022	Apr. 02, 2022	Jan. 01, 2022	Oct. 02, 2021	Jul. 03, 2021	Apr. 03, 2021	Dec. 26, 2020	Sep. 26, 2020	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 126,206	$ 138,391	$ 134,456	$ 132,762	$ 132,629	$ 134,600	$ 128,262	$ 123,207	$ 531,815	$ 518,698	$ 449,480
Gross profit	11,760	11,508	9,808	10,138	10,306	11,096	10,622	10,015	43,214	42,039	35,249
Income before income taxes	795	1,238	556	1,102	370	1,556	1,872	2,115	3,691	5,913	4,319
Net income	$ 968	$ 1,007	$ 587	$ 815	$ 175	$ 867	$ 1,580	$ 1,719	$ 3,377	$ 4,341	$ 4,758
Net income per share – basic	$ 0.09	$ 0.09	$ 0.05	$ 0.08	$ 0.02	$ 0.08	$ 0.15	$ 0.16	$ 0.31	$ 0.40	$ 0.44
Net income per share – diluted	$ 0.09	$ 0.09	$ 0.05	$ 0.07	$ 0.02	$ 0.08	$ 0.14	$ 0.16	$ 0.31	$ 0.39	$ 0.44
Weighted average shares outstanding– basic	10,762	10,762	10,762	10,762	10,762	10,760	10,760	10,760	10,762	10,760	10,760
Weighted average shares outstanding — Diluted	11,071	11,062	11,057	11,052	11,169	11,429	11,385	11,040	11,063	11,046	10,816