Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands		Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Jun. 30, 2013		$ 431	$ 11,168	$ 46,112	$ (750)	$ (853)	$ 56,108
Options exercised			13			159	172
Tax benefit of stock based compensation			27				27
Dividends declared 1	[1]			(1,001)			(1,001)
Net income				4,975			4,975
Other comprehensive income, net of taxes					(485)		(485)
Balance at Mar. 31, 2014		431	11,208	50,086	(1,235)	(694)	59,796
Balance at Jun. 30, 2014		431	11,208	51,305	(1,050)	(694)	61,200
Options exercised			43			65	108
Tax benefit of stock based compensation			16				16
Dividends declared 1	[1]			(1,453)			(1,453)
Net income				5,370			5,370
Other comprehensive income, net of taxes					612		612
Balance at Mar. 31, 2015		$ 431	$ 11,267	$ 55,222	$ (438)	$ (629)	$ 65,853

[1] Dividends declared were $0.54 per share and $0.525 per share for the nine months ended March 31, 2015 and 2014. This is based on total number of shares outstanding. Greene County Bancorp, MHC, the owner of 54.6% of the Company's shares outstanding waived its right to receive dividends during the six months ended December 31, 2014 and the nine months ended March 31, 2014. Dividends were paid to the MHC during the three months ended March 31, 2015. The MHC's ability to waive the receipt of dividends is dependent upon annual approval of its members as well as receiving the non-objection of the Federal Reserve Board.