Note 7 - Leases - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Amortization of right-of-use assets	$ 902	$ 1,179	$ 1,806	$ 2,306
Interest on lease obligations	104	207	216	361
Finance lease cost	1,006	1,386	2,022	2,667
Operating lease cost	1,127	1,442	2,214	3,274
Short-term lease cost	3,099	2,821	6,782	5,566
Total lease cost	$ 5,232	$ 5,649	11,018	11,507
Operating cash flows from finance leases			216	361
Operating cash flows from operating leases			3,085	4,475
Financing cash flows from finance leases			2,054	2,825
Payments for Amounts Included in the Measurement of Lease Liabilities, Total			5,355	7,661
Right-of-use assets obtained in exchange for new finance lease obligations			0	0
Right-of-use assets obtained in exchange for new operating lease obligations			2,116	2,117
Right-of-use assets derecognized upon early termination of finance leases			2	8
Right-of-use assets derecognized upon early termination of operating leases			$ 74	$ 8,222
Finance leases, lease term (Year)	3 years 6 months	4 years 1 month 6 days	3 years 6 months	4 years 1 month 6 days
Operating leases, lease term (Year)	4 years	4 years 3 months 18 days	4 years	4 years 3 months 18 days
Finance leases, discount rate	4.20%	4.00%	4.20%	4.00%
Operating leases, discount rate	5.20%	4.90%	5.20%	4.90%