Note 15 - Income Taxes (Details Textual) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		10 Months Ended
	Dec. 22, 2017	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017	Oct. 31, 2018
Income Tax Expense (Benefit), Total		$ 1,104	$ 287,036	$ 1,687	$ 286,485
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Revaluation of Deferred Tax Asset, Decrease				298,500
Revaluation of Deferred Tax Liabilities, Decrease				12,200
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability				0
Deferred Tax Assets, Valuation Allowance, Total		659,900		659,900
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		78	(50,173)	(39,971)	(57,549)
Gain (Loss) on Extinguishment of Debt, Total		(4,266)	(42,258)	(5,706)	(34,854)
Increase in Interest Incurred Per Year, Amount				23,400
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent						21.00%
Domestic Tax Authority [Member]
Income Tax Expense (Benefit), Total			278,513		275,688
Operating Loss Carryforwards, Total		1,600,000		1,600,000
State and Local Jurisdiction [Member]
Income Tax Expense (Benefit), Total		1,104	$ 8,523	1,687	$ 10,797
Operating Loss Carryforwards, Total		2,600,000		2,600,000
State and Local Jurisdiction [Member] | Between 2018 and 2022 [Member]
Operating Loss Carryforwards, Total		247,100		247,100
State and Local Jurisdiction [Member] | Between 2023 and 2027 [Member]
Operating Loss Carryforwards, Total		463,100		463,100
State and Local Jurisdiction [Member] | Between 2028 and 2032 [Member]
Operating Loss Carryforwards, Total		1,500,000		1,500,000
State and Local Jurisdiction [Member] | Between 2033 and 2037 [Member]
Operating Loss Carryforwards, Total		$ 348,600		$ 348,600