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Note 12 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%
Effective Income Tax Rate Reconciliation, Percent, Total	28.00%	35.00%		28.00%	27.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				5.00%	5.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total				2.00%	1.00%
Income Taxes Paid, Net, Total				$ 38
Proceeds from Income Tax Refunds						$ 21
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Total	$ 204			204
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Total	$ 567			$ 567
Forecast [Member]
Income Taxes Paid, Net, Total			$ 12

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 nondeductible expenses.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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