Note 5 - Leases - Lease Expense (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
Lease cost:
Amortization of right of use asset	$ 2,107	$ 1,040
Interest on lease liabilities	712	344
Finance lease cost	2,819	1,384
Operating lease cost	15,689	7,789
Total lease cost	18,508	9,173
Operating cash flows from finance leases	712
Operating cash flows from operating leases	18,390
Financing cash flows from finance leases	3,252
Total	22,354
Right-of-use assets obtained in exchange for new finance lease liabilities	1,471
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5,574
Financing leases (Year)	5 years 219 days
Operating leases, lease term (Year)	3 years 328 days
Financing leases	4.20%
Operating leases, discount rate	4.60%