Note 2 - Chapter 11 Proceeding and Emergence - Liabilities Subject to Compromise (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt subject to compromise
Total liabilities subject to compromise
Predecessor [Member]
Debt subject to compromise		$ 1,333,800
Accrued interest on debt subject to compromise		37,516
Accounts payable and other estimated allowed claims		60,780
Related party payables		13,250
Total liabilities subject to compromise		1,445,346
Line of Credit [Member] | Predecessor [Member]
Debt subject to compromise		284,400
Five-Year Term Loans [Member] | Predecessor [Member]
Debt subject to compromise		569,250
Seven-Year Term Loans [Member] | Predecessor [Member]
Debt subject to compromise		$ 480,150