Note 15 - Reconciliation of Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Reconciliation to effective tax rate:
Provision for income taxes at the anticipated annual tax rate	34.40%	45.00%	34.50%	41.40%
Impact of foreign operations				(0.20%)
Enactment of tax law changes			(0.90%)	(2.60%)
Uncertain tax positions	(2.90%)	(0.90%)	(0.50%)	(1.20%)
Other	(1.00%)	(12.00%)	(0.80%)	(3.30%)
Effective tax rate	30.50%	32.10%	32.30%	34.10%