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Note 13 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Income taxes computed at the federal statutory rate | $ 30,701 | $ 9,325 | $ (1,762)
State taxes, net of federal benefits | 1,422 | 796 | (253)
State tax rate changes, net of federal benefits | (546) | (2,274) |
Percentage depletion | (3,314) | (3,363) | (714)
PPP Loan forgiveness |  |  | (1,773)
Stock-based compensation | (1,499) | (194) | 473
162(m) compensation limitation | 3,481 |  |
Other, net | (92) | 357 | 545
Total income tax expense (benefit), net | $ 30,153 | $ 4,647 | $ (3,484)

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- 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 162(m) compensation limitation. + References No definition available. + Details
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- 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 increase (decrease) in the change in tax status. + References No definition available. + Details
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- 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 increase (decrease) in the income tax rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=123427490&loc=d3e32059-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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