CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2012	Sep. 30, 2011
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts	$ 86,268	$ 44,595
Intangible assets, accumulated amortization	4,628,474	3,682,633
Patents, accumulated amortization	$ 1,385,266	$ 1,328,486
Common stock, Authorized shares (in shares)	40,000,000	40,000,000
Common stock, Issued shares (in shares)	12,120,050	12,141,817
Common stock, outstanding shares (in shares)	12,120,050	12,141,817