Note 6 - Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Principal	$ 635,077	$ 565,793
Deferred Financing Costs, Net	(13,252)	(13,004)
Balance	621,825	552,789
Principal, Current	(47)	(23,337)
Deferred Financing Costs, Net, Current	0	0
Balance, Current	(47)	(23,337)
Principal, Non-current	635,030	542,456
Deferred Financing Costs, Net, Non-current	(13,252)	(13,004)
Balance, Non-current	621,778	529,452
The 6.75% Note [Member]
Principal	360,000	360,000
Deferred Financing Costs, Net	(6,771)	(8,968)
Balance	353,229	351,032
The 9.00% Note [Member]
Principal	275,000	0
Deferred Financing Costs, Net	(6,481)	0
Balance	268,519	0
Other Debt [Member]
Principal	77	955
Deferred Financing Costs, Net	0	0
Balance	77	955
First Senior Secured Credit Agreement [Member]
Principal	0	94,794
Deferred Financing Costs, Net	0	(1,829)
Balance	0	92,965
Second Senior Secured Credit Agreement [Member]
Principal	0	110,044
Deferred Financing Costs, Net	0	(2,207)
Balance	$ 0	$ 107,837