Statements of Comprehensive Loss (USD $)	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Revenues:
Sales	$ 3,274,796	$ 1,608,179	$ 1,863,773
Sales to related parties	99,896	333,663	1,063,495
Equipment rental	298,600	129,350	110,207
Total revenues	3,673,292	2,071,192	3,037,475
Cost of Revenues:
Cost of sales	2,161,967	1,244,290	1,074,030
Cost of related party sales	87,694	260,553	618,823
Cost of equipment rental	11,788	11,788	20,073
Total cost of revenues	2,261,449	1,516,631	1,712,926
Gross margin	1,411,843	554,561	1,324,549
Operating costs and expenses:
Research and development	2,281,854	2,364,608	1,483,659
Selling, general and administrative	7,403,273	6,203,200	5,189,561
Total operating costs and expenses	9,685,127	8,567,808	6,673,220
Loss from operations	(8,273,284)	(8,013,247)	(5,348,671)
Other income (expense):
Interest income	32,225	59,783	67,233
Other expense	(8,694)	(6,208)	(3,279)
Total other income (expense)	23,531	53,575	63,954
Loss before income taxes	(8,249,753)	(7,959,672)	(5,284,717)
Income tax provision	(1,938)	(988)	(800)
Net loss and comprehensive loss	$ (8,251,691)	$ (7,960,660)	$ (5,285,517)
Net loss per common share: Basic	$ (0.26)	$ (0.27)	$ (0.18)
Net loss per common share: Diluted	$ (0.26)	$ (0.27)	$ (0.18)
Weighted average number of shares outstanding: Basic	31,414,000	29,717,000	28,838,000
Weighted average number of shares outstanding: Diluted	31,414,000	29,717,000	28,838,000