Note 7 - Income Taxes - Components of Tax Provision (Benefit) Attributable to Income Before Income Taxes (Details) - USD ($) $ in Thousands	2 Months Ended	10 Months Ended		12 Months Ended
	Dec. 31, 2017	Nov. 14, 2017		Dec. 31, 2016	Dec. 31, 2015
Current Federal Tax Expense
Deferred Federal Tax Expense	(10,381)
Other Federal Tax Expense
Total Federal Tax Expense	(10,381)
Current Foreign Tax Expense	357
Deferred Foreign Tax Expense	(75)
Other Foreign Tax Expense	(205)
Total Foreign Tax Expense	77
Current Tax Expense	357
Deferred Tax Expense	(10,456)
Other Tax Expense	(205)
Total Tax Expense	$ (10,304)
Predecessor [Member]
Current Federal Tax Expense		$ 3			$ (69)
Deferred Federal Tax Expense		64,485		(36,442)	(3,270)
Other Federal Tax Expense		(101,784)	[1]	(6)	39
Total Federal Tax Expense		(37,296)		(36,448)	(3,300)
Current Foreign Tax Expense		1,058		1,419	1,130
Deferred Foreign Tax Expense		(998)		(2,014)	(553)
Other Foreign Tax Expense		(1,008)	[1]	(2,415)	(2,910)
Total Foreign Tax Expense		(948)		(3,010)	(2,333)
Current Tax Expense		1,061		1,419	1,061
Deferred Tax Expense		63,487		(38,456)	(3,823)
Other Tax Expense		(102,792)	[1]	(2,421)	(2,871)
Total Tax Expense		$ (38,244)		$ (39,458)	$ (5,633)

[1] Includes income tax effects of Fresh Start Accounting adjustments.