Note 23 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Sep. 03, 2013	Dec. 31, 2018	Dec. 31, 2017
Shareholders Equity [Line Items]
Stock Authorized		560,000,000
Common Stock, Shares Authorized		500,000,000
Common Stock, Par or Stated Value Per Share		$ 0.01	$ 0.01
Preferred Stock, Shares Authorized		60,000,000	60,000,000
Preferred Stock, No Par Value		$ 0	$ 0
Common Stock, Shares, Outstanding		42,800,000	42,600,000
Preferred Stock, Shares Issued		2,000,000	2,000,000
Warrants Issued Fair Value	$ 24
Warrants Terminate Date		Sep. 03, 2018
Stock Repurchased During Period, Value		$ 0	$ 1
Treasury Stock, Shares		600,000	600,000
Registration Rights Agreement Condition for Demanding Shelf Registration Statement, Takedown Percentage Ownership	10.00%
Registration Rights Agreement, Condition For Demanding Shelf Registration Statement, Takedown Minimum Aggregate Market Value	$ 75
Backstop Parties [Member]
Shareholders Equity [Line Items]
Stockholders Percentage of Outstanding Common Stock, Potentially Requiring Securities Offering	10.00%
Minimum Aggregate Market Value of Potential Stock Issuance	$ 75
Range 1 [Member] | Holders of General Unsecured and Retiree Committee Unsecured Claims [Member]
Shareholders Equity [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		2,100,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 14.93
Range 2 [Member] | Holders of General Unsecured and Retiree Committee Unsecured Claims [Member]
Shareholders Equity [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		2,100,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 16.12
Series A Preferred Stock [Member]
Shareholders Equity [Line Items]
Preferred Stock, Shares Outstanding		2,000,000	2,000,000
Preferred Stock, Shares Issued		2,000,000	2,000,000