Note 11 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Beginning Balance	$ 3,003	$ 2,991	$ 2,978
Additions based on tax positions related to the current year	4	12	12
Additions for tax positions of prior years	8,281		1
Reductions for tax positions of prior years	(37)	0
Ending Balance	$ 11,251	$ 3,003	$ 2,991

Amount of unrecognized tax benefits.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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