Stock-Based Compensation - Summary of Stock Option Activity (Details) (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Stock-Based Compensation [Abstract]
Outstanding at beginning of year (in shares)	59,435	87,400
Exercised (in shares)	(3,100)	(10,964)
Outstanding at end of year (in shares)	56,335	76,436
Exercisable at end of year (in shares)	56,335	76,436
Outstanding at beginning of year, Weighted Average Exercise Price Per Share (in dollars per share)	$ 12.50	$ 12.50
Exercised, Weighted Average Exercise Price Per Share (in dollars per share)	$ 12.50	$ 12.50
Outstanding at end of year, Weighted Average Exercise Price Per Share (in dollars per share)	$ 12.50	$ 12.50
Exercisable at end of year, Weighted Average Exercise Price Per Share (in dollars per share)	$ 12.50	$ 12.50