Income Taxes - Effective Tax Rate Reconciliation (Details)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Income Taxes [Abstract]
Tax based on federal statutory rate (in hundredth)	34.00%	34.00%
State income taxes, net of federal benefit (in hundredth)	1.02%	1.04%
Tax-exempt income (in hundredth)	(7.97%)	(6.65%)
Other, net (in hundredth)	0.94%	1.16%
Total income tax expense (in hundredth)	27.99%	29.55%