Summary of Net Sales by Major Product Category (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 2,979	$ 3,027	$ 6,442	$ 6,177
Frozen Desserts and Foods [Member]
Disaggregation of Revenue [Line Items]
Net sales	453	530	1,000	960
Cheese [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 2,526	$ 2,497	$ 5,442	$ 5,217

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details