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, 2014		$ 431	$ 11,208	$ 51,305	$ (1,050)	$ (694)	$ 61,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised			43			65	108
Tax benefit of stock based compensation			16				16
Dividends declared	[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
Balance at Jun. 30, 2015		431	11,220	56,696	(798)	(629)	66,920
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised			74			112	186
Tax benefit of stock based compensation			6				6
2-for-1 Stock Split	[2]	430	(430)				0
Dividends declared	[1]			(1,071)			(1,071)
Net income				6,631			6,631
Other comprehensive income, net of taxes					313		313
Balance at Mar. 31, 2016		$ 861	$ 10,870	$ 62,256	$ (485)	$ (517)	$ 72,985

[1] Dividends declared were $0.2775 per share and $0.27 per share for the nine months ended March 31, 2016 and 2015, adjusted for 2-for-1 stock split. This is based on total number of shares outstanding. However, Greene County Bancorp, MHC, the owner of 54.4% of the Company's shares outstanding at March 31, 2016, waived its right to receive dividends during the nine months ended March 31, 2016 and the six months ended December 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.

[2] On March 15, 2016, the Company issued an additional 4,305,670 shares at a par value of $0.10 per share as a result of the payment of a 2-for-1 stock split.