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Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Tax Expense (Benefit), Total	$ 738	$ (119)	$ 1,817	$ 964
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	$ (2,387)	1,688	$ (4,328)	4,920
Income Tax Expense (Benefit), Continuing Operations, Valuation Allowance on Foreign Tax Credits and Net Operating Losses		500		$ 800
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount		$ 400
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount					$ 200

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- Definition

Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to excess tax benefit for share-based compensation cost.

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Amount of income tax expense (benefit) from continuing operations attributable to valuation allowance on foreign tax credits and net operating losses not expected to be utilized in the future for enacted changes in tax laws or rates or a change in the tax status of the entity.

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