Other Financial Data - Schedule of Balance Sheet Information (Details) - USD ($) $ in Thousands	Oct. 02, 2022	Jul. 03, 2022
Receivables, net:
Customer receivables	$ 86,183	$ 99,963
Allowance for uncollectible accounts	(1,632)	(1,498)
Reserves for quality claims	(746)	(860)
Net customer receivables	83,805	97,605
Banker's acceptance notes	5,792	7,849
Other receivables	1,158	1,111
Total receivables, net	90,755	106,565
Inventories:
Raw materials	65,609	69,994
Supplies	11,963	11,953
Work in process	9,702	10,358
Finished goods	81,500	84,477
Gross inventories	168,774	176,782
Net realizable value adjustment	(3,711)	(3,487)
Total inventories	165,063	173,295
Other current assets:
Recovery of non-income taxes, net	4,762	6,770
Vendor deposits	4,508	6,910
Prepaid expenses and other	2,615	3,004
Value-added taxes receivable	1,963	1,987
Contract assets	488	285
Total other current assets	14,336	18,956
Property, plant and equipment, net:
Gross property, plant and equipment	890,031	886,811
Less: accumulated depreciation	(666,337)	(666,569)
Less: accumulated amortization – finance leases	(4,264)	(3,904)
Total property, plant and equipment, net	219,430	216,338
Other non-current assets:
Grantor trust	2,523	2,196
Investments in unconsolidated affiliates	2,246	2,072
Intangible assets, net	2,154	2,500
Other	2,017	2,020
Total other non-current assets	8,940	8,788
Other current liabilities:
Payroll and fringe benefits	10,830	9,414
Utilities	2,010	2,287
Deferred revenue	1,716	1,694
Incentive compensation	559	3,916
Property taxes and other	3,306	2,495
Total other current liabilities	18,421	19,806
Other long-term liabilities:
Nonqualified deferred compensation plan obligation	2,395	1,982
Uncertain tax positions	1,751	1,575
Other	539	892
Total other long-term liabilities	4,685	4,449
Land
Property, plant and equipment, net:
Gross property, plant and equipment	3,145	3,160
Land Improvements
Property, plant and equipment, net:
Gross property, plant and equipment	16,443	16,443
Building and Building Improvements
Property, plant and equipment, net:
Gross property, plant and equipment	165,565	164,252
Assets Held Under Finance Leases
Property, plant and equipment, net:
Gross property, plant and equipment	11,498	10,921
Machinery and Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	638,747	635,699
Computers Software And Office Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	25,630	25,348
Transportation Equipment
Property, plant and equipment, net:
Gross property, plant and equipment	10,447	10,591
Asset under Construction
Property, plant and equipment, net:
Gross property, plant and equipment	$ 18,556	$ 20,397