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Note 22 - Income Taxes (Details Textual) - USD ($) $ in Millions | 1 Months Ended | 2 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2016 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Required Dividend Payout |  |  | 90.00% |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |  |
Federal Income Tax Benefit from AMT Credit Refunds |  |  |  | $ 3.7 |
Deferred Federal Income Tax Expense (Benefit) |  |  |  | (1.1) |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  |  |  |  | $ 1.6
Unrecognized Tax Benefits, Ending Balance |  | $ 2.4 | $ 1.5 | $ 2.4 |
Mexican Tax Authority [Member] |  |  |  |  |
Tax Assessment Estimated Penalties Expense | $ 52.6 |  |  |  |
Tax Assessment, Estimated Penalties Expense, Amount Found to Be Improperly Assessed |  | 16.1 |  |  |
Tax Assessment, Estimated Penalties Expense, Amount Found to Be Improperly Assessed, Reporting Entity’s Share |  | $ 12.8 |  |  |
Mexican Tax Authority [Member] | Tax Year 2010 [Member] |  |  |  |  |
Income Tax Examination, Year under Examination | 2010 |  |  |  |
Tax Assessment Estimated Tax Expense | $ 33.7 |  |  |  |
Tax Assessment Estimated Interest Expense | 16.5 |  |  |  |
Tax Assessment Estimated Penalties Expense | $ 11.4 |  |  |  |
State and Local Jurisdiction [Member] |  |  |  |  |
Effective Income Tax Rate Reconciliation, Real Estate Investment Trust, Amount |  |  | $ 1.5 |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  |  |  |  | $ 0.3

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 real estate investment trust (REIT). + References No definition available. + Details
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- Definition Represents the amount of federal income tax benefit during the period attributable to AMT Credit refunds. + References No definition available. + Details
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- Definition The estimated interest expense related to the assessment of the company's taxes. + References No definition available. + Details
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- Definition The estimated penalties expense related to the assessment of the company's taxes. + References No definition available. + Details
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- Definition Represents the reporting entity’s share of the estimated penalties expense found by a court to be improperly assessed. + References No definition available. + Details
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