Note 3 - Business Combinations - Restructuring Activity (Details) - USD ($)	3 Months Ended				6 Months Ended
	Mar. 28, 2026	Dec. 27, 2025	Mar. 29, 2025	Dec. 28, 2024	Mar. 28, 2026	Mar. 29, 2025
Restructuring charges, net	$ 0		$ 662,000		$ 51,000	$ 1,358,000
Engineered Wire Products, Inc. [Member]
Beginning balance, liability	27,000	$ 24,000	129,000	$ 0	24,000	0
Restructuring charges, net	0	51,000	444,000	674,000
Cash payments	(27,000)	(48,000)	(263,000)	(275,000)
Non-cash charges	0	0	(217,000)	(270,000)
Ending balance, liability	0	27,000	93,000	129,000	0	93,000
Engineered Wire Products, Inc. [Member] | Employee Severance [Member]
Beginning balance, liability	0	0	54,000	0	0	0
Restructuring charges, net	0	0	59,000	192,000
Cash payments	0	0	(103,000)	(138,000)
Non-cash charges	0	0	0	0
Ending balance, liability	0	0	10,000	54,000	0	10,000
Engineered Wire Products, Inc. [Member] | Equipment Relocation [Member]
Beginning balance, liability	0	0	0	0	0	0
Restructuring charges, net	0	48,000	45,000	0
Cash payments	0	(48,000)	(17,000)	0
Non-cash charges	0	0	0	0
Ending balance, liability	0	0	28,000	0	0	28,000
Engineered Wire Products, Inc. [Member] | Facility Closing [Member]
Beginning balance, liability	27,000	24,000	75,000	0	24,000	0
Restructuring charges, net	0	3,000	123,000	212,000
Cash payments	(27,000)	0	(143,000)	(137,000)
Non-cash charges	0	0	0	0
Ending balance, liability	0	27,000	55,000	75,000	0	55,000
Engineered Wire Products, Inc. [Member] | Asset Impairments [Member]
Beginning balance, liability	0	0	0	0	0	0
Restructuring charges, net	0	0	217,000	270,000
Cash payments	0	0	0	0
Non-cash charges	0	0	(217,000)	(270,000)
Ending balance, liability	0	0	0	0	0	0
O'Brien Wire Products of Texas [Member]
Beginning balance, liability	49,000	49,000	11,000	0	49,000	0
Restructuring charges, net	0	0	218,000	22,000
Cash payments	(49,000)	0	(91,000)	(8,000)
Non-cash charges	0	0	(103,000)	(3,000)
Ending balance, liability	0	49,000	35,000	11,000	0	35,000
O'Brien Wire Products of Texas [Member] | Equipment Relocation [Member]
Beginning balance, liability	0	0	0	0	0	0
Restructuring charges, net	0	0	33,000	0
Cash payments	0	0	(11,000)	0
Non-cash charges	0	0	0	0
Ending balance, liability	0	0	22,000	0	0	22,000
O'Brien Wire Products of Texas [Member] | Facility Closing [Member]
Beginning balance, liability	49,000	49,000	11,000	0	49,000	0
Restructuring charges, net	0	0	82,000	19,000
Cash payments	(49,000)	0	(80,000)	(8,000)
Non-cash charges	0	0	0	0
Ending balance, liability	0	49,000	13,000	11,000	0	13,000
O'Brien Wire Products of Texas [Member] | Asset Impairments [Member]
Beginning balance, liability	0	0	0	0	0	0
Restructuring charges, net	0	0	103,000	3,000
Cash payments	0	0	0	0
Non-cash charges	0	0	(103,000)	(3,000)
Ending balance, liability	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0