Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|---|---|
Oct. 31, 2019 |
Sep. 30, 2019 |
Sep. 30, 2018 |
Jun. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
Dec. 31, 2018 |
|
| Income Tax Expense (Benefit), Total | $ (55,500) | $ 142 | $ (67,023) | $ 363 | |||
| Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount | (55,800) | ||||||
| Deferred Tax Assets, Valuation Allowance, Total | $ 117,800 | ||||||
| Interest Income Related to Income Tax Refunds | $ 500 | 4,500 | |||||
| Proceeds from Income Tax Refunds | $ 16,900 | ||||||
| Open Tax Year | 2013 2014 2015 2016 2017 2018 | ||||||
| Forecast [Member] | |||||||
| Proceeds from Income Tax Refunds | $ 2,000 | ||||||
| Subsequent Event [Member] | |||||||
| Proceeds from Income Tax Refunds | $ 34,900 | ||||||
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of cash received during the period as refunds for the overpayment of taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of interest income recorded during period related to income tax refunds. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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