Statements of Cash Flows (USD $)	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Cash flows from operating activities:
Net loss and comprehensive loss	$ (8,251,691)	$ (7,960,660)	$ (5,285,517)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	132,153	151,721	147,501
Stock issued for services	180,002	180,000	150,165
Stock-based compensation	1,134,811	1,206,398	1,064,539
Loss on disposition of property and equipment		118
Decrease (increase) in:
Decrease (increase) in receivables	(601,326)	482,743	(414,223)
Decrease (increase) in income tax receivable			50,000
Decrease (increase) in inventories	(41,813)	2,257	(167,960)
Decrease (increase) in other current assets	(79,959)	1,079	13,902
Increase (decrease) in:
Increase (decrease) in accounts payable	325,663	(106,182)	104,854
Increase (decrease) in accrued liabilities	149,182	92,694	108,084
Increase (decrease) in customer deposits	292,500	24,980
Increase (decrease) in deferred revenue	560,423	(11,087)	71,430
Net cash used in operating activities	(6,200,055)	(5,935,939)	(4,157,225)
Cash flows from investing activities:
Purchase of property and equipment	(35,362)	(97,521)	(214,554)
Net cash used in investing activities	(35,362)	(97,521)	(214,554)
Cash flows from financing activities:
Net proceeds from the sale of common stock	4,583,437		9,702,656
Proceeds from the exercise of warrants			2,989,406
Proceeds from the exercise of options			332,120
Net cash provided by financing activities	4,583,437		13,024,182
Net increase (decrease) in cash and cash equivalents	(1,651,980)	(6,033,460)	8,652,403
Cash and cash equivalents, beginning of year	11,102,508	17,135,968	8,483,565
Cash and cash equivalents, end of year	$ 9,450,528	$ 11,102,508	$ 17,135,968