CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Sep. 30, 2013	Sep. 30, 2012
Allowance for doubtful accounts (in dollars)	$ 184,775	$ 198,070
Common stock, par value (in dollars per share)	$ 0.0005	$ 0.0005
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	16,224,402	15,610,517
Common stock, shares outstanding	15,414,242	14,800,357
Treasury stock, shares	810,160	810,160