Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands		Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(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]			(1,335)			(1,335)
Net income				6,528			6,528
Other comprehensive income (loss), net of taxes					(300)		(300)
Balance at Jun. 30, 2014		431	11,208	51,305	(1,050)	(694)	61,200
Options exercised			(4)			65	61
Tax benefit of stock based compensation			16				16
Dividends declared	[1]			(1,798)			(1,798)
Net income				7,189			7,189
Other comprehensive income (loss), net of taxes					252		252
Balance at Jun. 30, 2015		$ 431	$ 11,220	$ 56,696	$ (798)	$ (629)	$ 66,920

[1] Dividends declared were $0.72 per share and $0.70 per share for the years ended June 30, 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 each quarter during the fiscal years ended June 30, 2015 and 2014 with the exception of the quarter ended March 31, 2015. Dividends were paid to the MHC during the quarter ended March 31, 2015 to provide liquidity based on the MHC's cash flow requirements. 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.