Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2015	Jun. 30, 2014
Balance Sheets [Abstract]
Progress payments	$ 19,626	$ 142,616
Common stock, par value	$ 0.3333	$ 0.3333
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,029,874	3,029,874
Common stock, shares outstanding	2,362,687	2,368,110
Unearned ESOP, shares	79,167	97,500
Treasury stock, shares	667,187	661,764