Effective Tax Rate Reconciliation (Details)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Computed "expected" tax expense, percent	35.00%	35.00%	35.00%
State income taxes net of federal income tax benefits, percent	2.30%	2.20%	2.60%
Research and development credit, percent	(3.30%)	(1.80%)	(2.00%)
Domestic production activities deduction, percent	(2.20%)	(2.10%)	(2.50%)
Other reconciling net, percent	0.20%	(0.20%)	0.70%
Effective Income Tax Rate Continuing Operations, percent	32.00%	33.10%	33.80%