Note 7 - Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Feb. 28, 2022	Dec. 31, 2021
Debt issuance costs, net (a)	[1]	$ (7,876)		$ (2,071)
Discounts, net (b)	[2]	(13,927)		0
Long term debt		203,197		97,929
Less current portion of long-term debt		0		0
Long-term debt, net		203,197		97,929
Revolving Credit Facility [Member]
Long-term debt		0		100,000
Senior Unsecured Notes Due 2024 [Member]
Long-term debt		$ 225,000		$ 0
Discounts, net (b)			$ (14,800)

[1] Debt issuance costs as of March 31, 2022 and December 31, 2021 consisted of $9.0 million and $2.6 million, respectively, in costs less accumulated amortization of $1.1 million and $502,000, respectively.

[2] Discounts as of March 31, 2022 and December 31, 2021 consisted of $14.8 million and zero, respectively, in discounts less accumulated amortization of $893,000 and zero, respectively.