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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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Represents the amount of increase (decrease) in deferred tax assets during the period.

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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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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.

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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