Securities - Association's Investments Gross Unrealized Losses and Fair Value of Association's Investments with Unrealized Losses (Detail) (USD $)	Jun. 30, 2014	Jun. 30, 2013
Less than 12 Months, Fair Value	$ 6,616,000	$ 107,019,000
Less than 12 Months, Unrealized Losses	(148,000)	(4,675,000)
12 Months or More, Fair Value	63,000,000
12 Months or More, Unrealized Losses	(1,511,000)
Total, Fair Value	69,616,000	107,019,000
Total, Unrealized Losses	(1,659,000)	(4,675,000)
U.S. Government, Federal Agency, and Government-Sponsored Enterprises (GSE) [Member]
Less than 12 Months, Fair Value	6,616,000	55,825,000
Less than 12 Months, Unrealized Losses	(148,000)	(2,372,000)
12 Months or More, Fair Value	17,370,000
12 Months or More, Unrealized Losses	(474,000)
Total, Fair Value	23,986,000	55,825,000
Total, Unrealized Losses	(622,000)	(2,372,000)
Mortgage-Backed GSE - Residential [Member]
Less than 12 Months, Fair Value		50,172,000
Less than 12 Months, Unrealized Losses		(2,263,000)
12 Months or More, Fair Value	44,585,000
12 Months or More, Unrealized Losses	(1,022,000)
Total, Fair Value	44,585,000	50,172,000
Total, Unrealized Losses	(1,022,000)	(2,263,000)
State and Political Subdivisions [Member]
Less than 12 Months, Fair Value		1,022,000
Less than 12 Months, Unrealized Losses		(40,000)
12 Months or More, Fair Value	1,045,000
12 Months or More, Unrealized Losses	(15,000)
Total, Fair Value	1,045,000	1,022,000
Total, Unrealized Losses	$ (15,000)	$ (40,000)