Statements of Changes in Stockholders' Equity - USD ($)	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Unearned ESOP Shares [Member]	Total
Balance, beginning at Jun. 30, 2014	$ 1,009,958	$ 16,429,220	$ (1,437)	$ 20,946,940	$ (7,328,864)	$ (1,408,872)	$ 29,646,945
Balance, beginning, shares at Jun. 30, 2014	2,368,110				661,764		2,368,110
Net income				3,183,127			$ 3,183,127
Other comprehensive income (loss), net of tax			(2,949)				(2,949)
Total comprehensive income							3,180,178
Stock options exercised		74,405			$ 67,072		$ 141,477
Stock options exercised, shares	8,130				(8,130)		8,130
Stock option expense		62,416					$ 62,416
Dividends paid on common stock				(2,288,978)			(2,288,978)
Tax effect of stock options exercised		26,835					26,835
Tax effect of dividends on unallocated ESOP shares				24,862			24,862
Purchase of treasury stock					$ (320,504)		(320,504)
Purchase of treasury stock, shares	(13,553)				13,553
Reduction of unearned ESOP shares		192,728				264,915	457,643
Balance, ending at Jun. 30, 2015	$ 1,009,958	16,785,604	(4,386)	21,865,951	$ (7,582,296)	(1,143,957)	$ 30,930,874
Balance, ending, common shares at Jun. 30, 2015	2,362,687				667,187		2,362,687
Net income				3,175,801			$ 3,175,801
Other comprehensive income (loss), net of tax			2,978				2,978
Total comprehensive income							3,178,779
Stock options exercised		162,488			$ 134,475		$ 296,963
Stock options exercised, shares	16,300				(16,300)		16,300
Stock option expense		97,045					$ 97,045
Dividends paid on common stock				(2,256,018)			(2,256,018)
Tax effect of stock options exercised		17,141					17,141
Tax effect of dividends on unallocated ESOP shares				35,204			35,204
Purchase of treasury stock					$ (355,418)		(355,418)
Purchase of treasury stock, shares	(14,303)				14,303
Reduction of unearned ESOP shares		190,794				252,874	443,668
Balance, ending at Jun. 30, 2016	$ 1,009,958	$ 17,253,072	$ (1,408)	$ 22,820,938	$ (7,803,239)	$ (891,083)	$ 32,388,238
Balance, ending, common shares at Jun. 30, 2016	2,364,684				665,190		2,364,684