Note 6 - Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal		$ (8,475)
State		(162)
Foreign		121
Total current provision		(8,516)
Federal		(28,950)
State		(2,294)
Foreign
Total deferred provision		(31,244)
Provision for income taxes		$ (39,760)
Predecessor [Member]
Federal			$ 2,047	$ (23,784)
State			(1,588)	(2,265)
Foreign			64	100
Total current provision			523	(25,949)
Federal	(4,613)		(122,302)	(248,279)
State			(8,864)	(20,553)
Foreign			1,633	(4,312)
Total deferred provision	(4,613)		(129,533)	(273,144)
Provision for income taxes	$ (4,613)		$ (129,010)	$ (299,093)