Note 7 - Goodwill, Customer Relationships and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 29, 2026	Mar. 30, 2025
Finite-lived intangible assets, gross amount	$ 17,890	$ 17,890
Finite-lived intangible assets, accumulated amortization	11,615	10,840
Finite-lived intangible assets, net	6,275	7,050
Trademarks and Trade Names [Member]
Finite-lived intangible assets, gross amount	3,217	3,217
Finite-lived intangible assets, accumulated amortization	2,405	2,316
Finite-lived intangible assets, net	812	901
Noncompete Agreements [Member]
Finite-lived intangible assets, gross amount	98	98
Finite-lived intangible assets, accumulated amortization	98	98
Finite-lived intangible assets, net	0	0
Patents [Member]
Finite-lived intangible assets, gross amount	1,601	1,601
Finite-lived intangible assets, accumulated amortization	1,212	1,160
Finite-lived intangible assets, net	389	441
Customer Relationships [Member]
Finite-lived intangible assets, gross amount	8,174	8,174
Finite-lived intangible assets, accumulated amortization	7,292	7,007
Finite-lived intangible assets, net	882	1,166
Licensing Agreements [Member]
Finite-lived intangible assets, gross amount	4,800	4,800
Finite-lived intangible assets, accumulated amortization	608	259
Finite-lived intangible assets, net	$ 4,192	$ 4,541