Stock-based Compensation Plans (Summary of Stock Option Activity) (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Stock-Based Compensation Plans [Abstract]
Outstanding at beginning of year	103,700	144,834
Options granted	0	0
Exercised	(16,300)	(41,134)
Outstanding at end of year	87,400	103,700
Exercisable at end of year	87,400	103,700
Outstanding at beginning of year, Weighted Average Exercise Price Per Share	$ 12.50	$ 12.50
Exercised, Weighted Average Exercise Price Per Share	$ 12.50	$ 12.50
Outstanding at end of year, Weighted Average Exercise Price Per Share	$ 12.50	$ 12.50
Exercisable at end of year, Weighted Average Exercise Price Per Share	$ 12.50	$ 12.50