Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Jun. 30, 2020 |
|
| Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ 0.32 | $ 0.64 | |||
| Interest Expense, Total | $ 3,585 | $ 4,872 | $ 8,002 | $ 10,094 | |
| Nonoperating Income (Expense), Total | 5,373 | 113,334 | (4,381) | 97,812 | |
| Income Tax Expense (Benefit), Total | $ 10,224 | $ 30,704 | 16,168 | 34,111 | |
| AOCI Attributable to Parent [Member] | |||||
| Deferred Income Tax Expense (Benefit), Total | (2,886) | $ (4,058) | |||
| Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI Attributable to Parent [Member] | |||||
| Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 4,200 | 600 | |||
| Interest Expense, Total | 5,026 | 821 | |||
| Nonoperating Income (Expense), Total | (512) | ||||
| Income Tax Expense (Benefit), Total | $ (1,289) | $ (192) | |||
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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