Note 14 - Income Taxes - Reconciliation of Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Provision for income taxes at the anticipated annual tax rate	(0.70%)	28.90%	13.60%	28.90%
Enactment of tax law changes				(22.80%)
Uncertain tax positions	(0.10%)	5.40%	0.60%	0.70%
Difference between deferred and current tax rate related to the impairment of goodwill			6.70%	12.30%
Other
Tax impact related to share based compensation	(3.60%)	1.60%	(0.90%)	(0.50%)
Effective tax rate	(4.40%)	35.90%	20.00%	18.60%