Note 15 - Reconciliation of Income Tax Rate (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Reconciliation to effective tax rate:
Provision for income taxes at the anticipated annual tax rate	33.30%	36.10%	34.50%	41.00%
Impact of foreign operations				(0.20%)
Enactment of tax law changes	(2.00%)	(6.10%)	(1.00%)	(2.90%)
Uncertain tax positions	(0.30%)	(1.30%)	(0.30%)	(1.20%)
Other	(1.20%)	(0.30%)	(0.70%)	(2.40%)
Effective tax rate	29.80%	28.40%	32.50%	34.30%