Deposits - Maturities of Time Deposits (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Banking And Thrift [Abstract]
12 months or less, Interest rate	53.20%	76.30%
13 to 24 months, Interest rate	34.70%	14.00%
25 to 36 months, Interest rate	3.30%	3.90%
Over 36 months, Interest rate	8.80%	5.80%
Total Interest rate	100.00%	100.00%
Weighted average rate on certificate of deposits	0.96%	1.24%
12 months or less, Amount	$ 173,731,565	$ 293,579,515
13 to 24 months, Amount	113,502,736	53,750,152
25 to 36 months, Amount	10,896,268	14,845,083
Over 36 months, Amount	28,633,354	22,392,207
Total Time Deposits	$ 326,763,923	$ 384,566,957