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Note 14 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Increase (Decrease) in Deferred Tax Liability From Fixed Interest Rate Hedge | $ (645) |  |
Income Taxes Paid, Net, Total | 1,000 | $ 500 | $ 11,300
Deferred Tax Assets, Valuation Allowance, Total | 2,302 | 2,215 |
State and Local Jurisdiction [Member] |  |  |
Deferred Tax Assets, Valuation Allowance, Total | $ 2,300 | $ 2,200 |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586 + Details
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- Definition The amount of increase (decrease) in deferred tax liability from fixed interest rate hedge. + References No definition available. + Details
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