Note 13 - Earnings (Loss) Per Share - Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders (Details) - USD ($) shares in Thousands, $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended					8 Months Ended	9 Months Ended
		Sep. 30, 2020	Aug. 21, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Aug. 21, 2020	Sep. 30, 2019
Net loss		$ (11,516)	$ (56)	$ (4,147)	$ (80,831)	$ (1,009)	$ (1,411)	$ (3,413)	$ (85,034)	$ (5,833)
Participating share-based earnings (a)	[1]
Basic and diluted net income (loss) attributable to common stockholders		$ (11,516)
Basic weighted average shares outstanding (in shares)		91,592
Dilution attributable to stock-based compensation awards (in shares)
Diluted weighted average shares outstanding (in shares)		91,592

[1] Participating earnings represent the distributed and undistributed earnings of the Company attributable to the participating securities. Unexercised stock option awards do not participate in undistributed net losses as they are not contractually obligated to do so.