Business Segment Reporting - Operations by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 27, 2022	Feb. 28, 2021	Feb. 27, 2022	Feb. 28, 2021
Segment Reporting Information [Line Items]
Net sales	$ 53,074	$ 44,690	$ 138,158	$ 126,629
Gross profit	13,895	14,441	39,045	35,890
Net (loss) income from continuing operations	(7,106)	(1,465)	(10,510)	(8,789)
Loss from discontinued operations, net of tax	(5,744)	(4,033)	(50,258)	(21,010)
Depreciation and amortization	2,834	2,237	8,059	6,582
Interest income	20	13	66	31
Interest expense	4,105	2,939	13,877	6,609
Income tax (benefit) expense	(276)	(58)	(5,012)	(1,025)
Corporate overhead allocation	0	0	0	0
Lifecore
Segment Reporting Information [Line Items]
Net sales	34,808	27,225	81,707	72,248
Gross profit	12,905	11,561	30,384	27,036
Net (loss) income from continuing operations	5,054	5,104	11,317	9,708
Loss from discontinued operations, net of tax	0	0	0	0
Depreciation and amortization	1,674	1,385	4,894	4,055
Interest income	18	0	56	0
Interest expense	0	0	0	0
Income tax (benefit) expense	1,596	1,612	3,574	3,066
Corporate overhead allocation	1,175	1,102	3,389	3,668
Curation Foods
Segment Reporting Information [Line Items]
Net sales	18,266	17,465	56,451	54,381
Gross profit	990	2,880	8,661	8,854
Net (loss) income from continuing operations	(5,848)	(394)	5,513	(1,346)
Loss from discontinued operations, net of tax	(2,703)	(4,033)	(47,217)	(21,010)
Depreciation and amortization	1,142	830	3,095	2,451
Interest income	0	0	0	0
Interest expense	26	136	301	410
Income tax (benefit) expense	(1,867)	(1,614)	(12,843)	(2,095)
Corporate overhead allocation	289	87	778	621
Other
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Gross profit	0	0	0	0
Net (loss) income from continuing operations	(6,312)	(6,175)	(27,340)	(17,151)
Loss from discontinued operations, net of tax	(3,041)	0	(3,041)	0
Depreciation and amortization	18	22	70	76
Interest income	2	13	10	31
Interest expense	4,079	2,803	13,576	6,199
Income tax (benefit) expense	(5)	(56)	4,257	(1,996)
Corporate overhead allocation	$ (1,464)	$ (1,189)	$ (4,167)	$ (4,289)