Note 8 - Leases - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2022	Jan. 01, 2022
Amortization of right of use asset	$ 1,703	$ 1,557	$ 4,960	$ 4,398
Interest on lease liabilities	239	263	720	799
Finance lease cost	1,942	1,820	5,680	5,197
Operating lease cost	2,926	4,739	10,810	14,699
Total lease cost	$ 4,868	$ 6,559	16,490	19,896
Operating cash flows from finance leases			720	799
Operating cash flows from operating leases			12,343	15,917
Financing cash flows from finance leases			6,515	5,803
Payments for Amounts Included in the Measurement of Lease Liabilities, Total			19,578	22,519
Right-of-use assets obtained in exchange for new finance lease liabilities			4,053	9,754
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 4,184	$ 10,505
Financing leases (Year)	4 years 7 months 6 days	4 years 7 months 6 days	4 years 7 months 6 days	4 years 7 months 6 days
Operating leases, lease term (Year)	4 years 7 months 6 days	4 years 2 months 12 days	4 years 7 months 6 days	4 years 2 months 12 days
Financing leases	3.60%	3.40%	3.60%	3.40%
Operating leases, discount rate	4.40%	4.20%	4.40%	4.20%