Supplemental Cash Flow Information (Schedule of supplemental cash flow information) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023
Changes in Operating Assets and Liabilities, Net of Divestitures
Accounts receivable	$ 2,309	$ 7,525
Inventories	(15,962)	(10,936)
Accounts payable and accrued liabilities	(7,987)	7,224
Other operating assets and liabilities	73	2,043
Changes in operating assets and liabilities, total	(21,567)	5,856
Non-Cash Investing and Financing Activities
Change in additions to property, plant and equipment included in accounts payable and accrued liabilities	1,759	(733)
Right of use assets obtained in exchange for lease liabilities:
Operating leases	(7,143)	(11,437)
Finance leases	(25,736)	(2,962)
Promissory note receivable from sale of smoothie bowls product line	(3,000)	0
Change in short-term note receivable from divestiture of Frozen Fruit	6,300	0
Change in accrued dividends on preferred stock	(305)	(305)
Change in proceeds receivable from divestiture of sunflower business	$ 0	$ 385