Condensed Statements of Cash Flows (USD $)	6 Months Ended
	Feb. 29, 2012	Feb. 28, 2011
Net loss	$ (3,790,003)	$ (2,501,266)
Depreciation and amortization	74,440	75,096
Stock-based compensation	580,510	396,326
Loss on disposition of property and equipment	118
Decrease (increase) in receivables	543,346	134,835
Decrease (increase) in income tax receivable		50,000
Decrease (increase) in inventories	(76,639)	(10,224)
Decrease (increase) in other current assets	(3,320)	22,508
Increase (decrease) in accounts payable	(50,530)	34,260
Increase (decrease) in accrued liabilities	73,462	32,819
Increase (decrease) in customer deposits		292,480
Increase (decrease) in deferred revenue	17,334	(37,033)
Net cash used in operating activities	(2,631,282)	(1,510,199)
Purchase of property and equipment	(84,618)	(126,995)
Net proceeds from the sale of common stock		9,702,656
Proceeds from the exercise of warrants		2,989,407
Proceeds from the exercise of stock options		256,120
Net cash provided by financing activities		12,948,183
Net increase (decrease) in cash and cash equivalents	(2,715,900)	11,310,989
Cash and cash equivalents, beginning of the period	17,135,968	8,483,565
Cash and cash equivalents, end of the period	$ 14,420,068	$ 19,794,554