Lease Obligations and Other Commitments - Schedule of Gross Amount Assets and Liabilities Related to Operating and Financing Leases (Details) - USD ($) $ in Thousands	Feb. 26, 2022	May 29, 2021
Lease Type
Operating lease ROU asset	$ 3,263	$ 2,262
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Assets Noncurrent	Assets Noncurrent
Financing lease ROU asset	$ 239	$ 308
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Assets Noncurrent	Assets Noncurrent
Total lease ROU asset	$ 3,502	$ 2,570
Operating lease liability current	$ 1,149	$ 918
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Liabilities Current	Liabilities Current
Financing lease liability current	$ 15	$ 148
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Liabilities Current	Liabilities Current
Total lease liability current	$ 1,164	$ 1,066
Operating lease liability non-current	$ 2,113	$ 1,358
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Total lease liability non-current	$ 2,113	$ 1,358