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Note 2 - Chapter 11 Proceeding and Emergence - Reorganization Items (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 01, 2017
Mar. 31, 2017
Mar. 31, 2016
Total reorganization items    
Predecessor [Member]      
Gain on settlement of liabilities subject to compromise $ 666,399    
Net loss on fresh start fair value adjustments (358,557)    
Professional fees (13,435)    
Vendor claims adjustment (438)    
Total reorganization items $ 293,969