Earnings Per Common Share (Details)	12 Months Ended
	Jun. 30, 2015 $ / shares shares	Jun. 30, 2014 $ / shares shares	Jun. 30, 2013 $ / shares shares
Components of average outstanding common shares [Abstract]
Average Common Shares Issued (in shares)	2,172,944	3,062,386
Average Treasury Shares Held (in shares)	0	(773,437)
Average Unearned ESOP Shares (in shares)	(150,314)	(161,844)
Average Unearned RRP Trust Shares (in shares)	(44,398)	(58,239)
Weighted Average Number of Common Shares Used in Basic EPS (in shares)	1,978,232	2,068,866
Effect of Dilutive Securities Stock Options (in shares)	53,627	51,932
Weighted Average Number of Common Shares and Diluted Potential Common Shares Used in Dilutive EPS (in shares)	2,031,859	2,120,798
Exchange ratio of common stock	0.9110
Outstanding options to purchase shares (in shares)	208,461	198,480	237,077
Per share price of outstanding options (in dollars per share) | $ / shares	$ 15.03	$ 13.99	$ 13.64