Note 1 - Basis of Presentation - Schedule of Basic and Dilutive Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Net (Loss) Income		$ 126,291	$ (4,450)	$ 4,172	$ 26,404	$ 121,841	$ 30,576
Weighted-average shares of common stock outstanding (in shares)		34,846,037		34,446,605		34,753,887	34,327,282
Effect of dilutive shares (in shares)	[1]	877,437		643,892		897,904	734,388
Weighted-average diluted shares of common stock outstanding (in shares)		35,723,474		35,090,497		35,651,791	35,061,670
Basic (in dollars per share)		$ 3.62		$ 0.12		$ 3.51	$ 0.89
Dilutive (in dollars per share)		$ 3.54		$ 0.12		$ 3.42	$ 0.87

[1] During periods in which the Company incurs a net loss, diluted weighted average shares outstanding are equal to basic weighted average shares outstanding because the effect of all equity awards is anti-dilutive.