Note 16 - Income Taxes - Reconciliation of Income Tax Rate (Details)	3 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Provision for income taxes at the anticipated annual tax rate	23.90%	24.10%
Uncertain tax positions	1.00%	0.50%
Tax rate changes	(15.70%)	0.00%
Shared-based compensation	2.40%	4.30%
Other	0.00%	0.40%
Effective tax rate	11.60%	29.30%

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

No definition available.

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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 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 expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Percentage 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 income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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