Note 11 - Commitments and Contingencies (Details Textual) - USD ($)	Apr. 02, 2023	Dec. 31, 2022
Standard and Extended Product Warranty Accrual	$ 723,000	$ 690,000
Accrual for Environmental Loss Contingencies, Ending Balance	0	$ 0
Inventories [Member]
Purchase Obligation	65,431,000
Purchase Obligation, to be Paid, Year One	44,667,000
Purchase Obligation, to be Paid, Year Two	20,415,000
DOL [Member]
Estimated Litigation Liability	575,000
DOL [Member] \| Minimum [Member]
Loss Contingency, Estimate of Possible Loss	0
DOL [Member] \| Maximum [Member]
Loss Contingency, Estimate of Possible Loss	$ 58,000

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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