Balance Sheets (USD $)	Nov. 30, 2012	Aug. 31, 2012
Cash and cash equivalents	$ 9,142,517	$ 11,102,508
Accounts receivable, net of allowance for doubtful accounts of $20,000	436,562	289,587
Related party trade accounts receivable	56,526	33,257
Inventories, net	2,344,058	2,403,957
Other current assets	136,373	120,069
Total current assets	12,116,036	13,949,378
Property and equipment, net	1,383,559	1,412,639
Patents, net		4,032
Total assets	13,499,595	15,366,049
Accounts payable	210,344	195,754
Accrued liabilities	459,454	424,698
Customer deposits	41,250	24,980
Deferred revenue - current portion	132,248	96,865
Total current liabilities	843,296	742,297
Deferred revenue - net of current portion	87,719	126,420
Total liabilities	931,015	868,717
Commitments and contingencies
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	52,134,947	51,845,035
Treasury stock, 24,331 shares at cost	(234)	(234)
Accumulated deficit	(39,595,911)	(37,377,247)
Total stockholders' equity	12,568,580	14,497,332
Total liabilities and stockholders' equity	$ 13,499,595	$ 15,366,049