Note 7 - Leases - Undiscounted Future Lease Payments Under Operating Leases and Financial Leases (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Mar. 31, 2024	Dec. 30, 2023
Balance of 2025, operating	$ 362
Balance of 2025, financing	1,136
2026, operating	3,223
2026, financing	4,269
2027, operating	2,268
2027, financing	3,218
2028, operating	1,816
2028, financing	2,811
2029, operating	1,156
2029, financing	1,659
2030-2034, operating	1,623
2030-2034, financing	1,306
Total minimum payment required, operating	10,448
Total minimum payment required, financing	14,399
Less interest, operating	1,002
Less interest, financing	1,136
Present value of minimum lease payments, operating	9,446
Present value of minimum lease payments, financing	13,263
Amount due within one year, operating	2,905
Amount due within one year, financing	4,053
Long-term lease obligations, operating	6,541	$ 13,758	$ 13,617
Long-term lease obligations, financing	$ 9,210	$ 12,259	$ 13,102