Consolidated Balance Sheets [Parenthetical] (USD $)	Jun. 30, 2012	Jun. 30, 2011
Allowance for doubtful accounts (in dollars)	$ 155,739	$ 115,739
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	7,082,920	7,079,170
Common stock, shares outstanding	7,005,360	7,001,370
Treasury stock, shares	77,560	77,800