Lease Obligations and Other Commitments - Schedule of Gross Amount Assets and Liabilities Related to Operating and Financing Leases (Details) - USD ($) $ in Thousands	Aug. 28, 2021	May 29, 2021
Lease Type
Operating lease ROU asset	$ 3,831	$ 2,262
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Total Lease ROU asset	Total Lease ROU asset
Financing lease ROU asset	$ 285	$ 308
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Total Lease ROU asset	Total Lease ROU asset
Total Lease ROU asset	$ 4,116	$ 2,570
Operating lease liability current	$ 1,193	$ 918
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total lease liability current	Total lease liability current
Financing lease liability current	$ 104	$ 148
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total lease liability current	Total lease liability current
Total lease liability current	$ 1,297	$ 1,066
Operating lease liability non-current	$ 2,638	$ 1,358
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Total lease liability non-current	Total lease liability non-current
Total lease liability non-current	$ 2,638	$ 1,358