Balance Sheets (USD $)	Feb. 28, 2013	Aug. 31, 2012
Current assets:
Cash and cash equivalents	$ 7,731,846	$ 11,102,508
Accounts receivable, net of allowance for doubtful accounts of $20,000	481,777	289,587
Related party trade accounts receivable	24,593	33,257
Inventories, net	2,380,035	2,403,957
Other current assets	173,377	120,069
Total current assets	10,791,628	13,949,378
Property and equipment, net	1,359,384	1,412,639
Patents, net		4,032
Total assets	12,151,012	15,366,049
Current liabilities:
Accounts payable	299,209	195,754
Accrued liabilities	637,002	424,698
Customer deposits	41,250	24,980
Deferred revenue - current portion	92,229	96,865
Total current liabilities	1,069,690	742,297
Deferred revenue - net of current portion	87,719	126,420
Total liabilities	1,157,409	868,717
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.001 par value; 10,000,000 shares authorized, no shares issued and outstanding
Common stock, $.001 par value, 80,000,000 shares authorized, 29,777,522 shares issued	29,778	29,778
Additional paid-in capital	52,421,367	51,845,035
Treasury stock, 24,331 shares at cost	(234)	(234)
Accumulated deficit	(41,457,308)	(37,377,247)
Total stockholders' equity	10,993,603	14,497,332
Total liabilities and stockholders' equity	$ 12,151,012	$ 15,366,049