Note 17 - Other Postretirement Benefits (Details) - Weighted-average Assumptions Used to Determine the Net Benefit Obligations (Other Postretirement Benefit Plans [Member])	Dec. 31, 2014	Dec. 31, 2013	Aug. 31, 2013
Successor [Member]
Note 17 - Other Postretirement Benefits (Details) - Weighted-average Assumptions Used to Determine the Net Benefit Obligations [Line Items]
Discount rate	3.49%	4.28%
Salary increase rate	2.60%	2.50%
Predecessor [Member]
Note 17 - Other Postretirement Benefits (Details) - Weighted-average Assumptions Used to Determine the Net Benefit Obligations [Line Items]
Discount rate			4.09%
Salary increase rate			2.50%