Basis of Financial Statement Presentation - Additional Information (Detail) - USD ($)		6 Months Ended	9 Months Ended
	Jul. 07, 2011	Dec. 31, 2011	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Shares purchased at employee stock ownership plan, shares	384,900		384,900
Number of donated shares of common stock	314,755	314,755
Cash contributed to the foundation	$ 450,000	$ 450,000