Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2012	Jun. 30, 2011
Statement of Financial Position [Abstract]
Advance payments of contracts in process	$ 511,502	$ 126,361
Common stock, par value	$ 0.33	$ 0.33
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,029,874	3,029,874
Common stock, shares outstanding	2,320,822	2,320,960
Unearned ESOP, shares	136,666	157,500
Treasury stock, shares	709,052	708,914