Statements of Cash Flows (USD $)	6 Months Ended
	Feb. 28, 2013	Feb. 29, 2012
Cash flows from operating activities:
Net loss and comprehensive loss	$ (4,080,061)	$ (3,790,003)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	70,026	74,440
Stock-based compensation	576,332	580,510
Loss on disposition of property and equipment		118
Decrease (increase) in:
Receivables	(183,526)	543,346
Inventories	23,922	(76,639)
Other current assets	(53,308)	(3,320)
Increase (decrease) in:
Accounts payable	103,455	(50,530)
Accrued liabilities	212,304	73,462
Customer deposits	16,270
Deferred revenue	(43,337)	17,334
Net cash used in operating activities	(3,357,923)	(2,631,282)
Cash flows from investing activities:
Purchase of property and equipment	(12,739)	(84,618)
Cash flows from financing activities
Net decrease in cash and cash equivalents	(3,370,662)	(2,715,900)
Cash and cash equivalents, beginning of the period	11,102,508	17,135,968
Cash and cash equivalents, end of the period	$ 7,731,846	$ 14,420,068