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Note 13 - Income Taxes (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Tax Adjustments, Settlements, and Unusual Provisions |  |  | $ 19,000 |
Income Taxes Receivable | $ 700,000 |  | 700,000 |
Income (Loss) Attributable to Parent, before Tax, Total | 27,200,000 | $ (4,300,000) | 15,600,000 | $ (2,100,000)
Income Tax Expense (Benefit), Total | $ 6,319,322 | $ (1,119,689) | $ 3,616,816 | $ (613,536)
Effective Income Tax Rate Reconciliation, Percent, Total | 23.20% | 26.20% | 23.20% | 28.60%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00% | 21.00%
Deferred Tax Assets, Net of Valuation Allowance, Total |  |  | $ (700,000) |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Amount, before tax, of income (loss) attributable to parent. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.20) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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