Note 7 - Long-term Debt - Long-term Debt (Details) - USD ($)		Jun. 30, 2022	Feb. 28, 2022	Dec. 31, 2021
Debt issuance costs, net (a)	[1]	$ (9,388,000)		$ (2,071,000)
Discounts, net (b)	[2]	(12,080,000)		0
Long term debt		488,532,000		97,929,000
Less current portion of long-term debt		0		0
Long-term debt, net		488,532,000		97,929,000
Senior Unsecured Notes Due 2024 [Member]
Long-term debt		225,000,000		0
Discounts, net (b)			$ (14,800,000)
Revolving Credit Facility [Member]
Long-term debt		$ 285,000,000		$ 100,000,000

[1] Debt issuance costs as of

[2] Discounts as of June