Condensed Statements of Cash Flows (USD $)	3 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Net loss	$ (1,687,405)	$ (947,301)
Depreciation and amortization	37,059	40,873
Stock-based compensation	289,055	175,142
Loss on disposition of property and equipment	118
Decrease (increase) in receivables	223,563	72,715
Decrease (increase) in income tax receivable		50,000
Decrease (increase) in inventories	(57,055)	(3,160)
Decrease (increase) in other current assets	23,324	64,642
Increase (decrease) in accounts payable	(130,524)	(52,269)
Increase (decrease) in accrued liabilities	(66,070)	(30,409)
Increase (decrease) in customer deposits		150,000
Increase (decrease) in deferred revenue	(10,329)	(27,704)
Net cash used in operating activities	(1,378,264)	(507,471)
Purchase of property and equipment	(29,120)	(74,708)
Net cash used in investing activities	(29,120)	(74,708)
Net proceeds from the sale of common stock		9,704,614
Proceeds from the exercise of warrants		1,943,929
Proceeds from the exercise of stock options		64,320
Net cash provided by financing activities		11,712,863
Net increase (decrease) in cash and cash equivalents	(1,407,384)	11,130,684
Cash and cash equivalents, beginning of period	17,135,968	8,483,565
Cash and cash equivalents, end of period	$ 15,728,584	$ 19,614,249