Balance Sheets (Unaudited) (Parenthetical) (USD $)	Dec. 31, 2013	Jun. 30, 2013
Statement of Financial Position [Abstract]
Advance payments of costs related to contracts in process	$ 148,722	$ 146,916
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	2,355,810	2,344,690
Unearned ESOP, shares	$ 107,083	$ 116,666
Treasury stock, shares	674,064	685,184