STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Income Statement [Abstract]
Net sales	$ 11,460,880	$ 10,070,770
Cost of sales	1,629,069	1,646,530
Gross profit	9,831,811	8,424,240
Operating expenses
Selling, general, and administrative	4,439,665	3,549,495
Research and development	952,774	802,374
Total operating expenses	5,392,439	4,351,869
Income from operations	4,439,372	4,072,371
Other income (expense)
Interest income	31,437	49,492
Miscellaneous income	0	35,488
Gain on currency exchange	42,488	99,429
Total other income (expense)	73,925	184,409
Income before provision for income taxes	4,513,297	4,256,780
Provision for income taxes (note 7)	(1,487,806)	(1,370,182)
Net Income	$ 3,025,491	$ 2,886,598
Earnings per share
Basic	$ 0.19	$ 0.18
Diluted	$ 0.18	$ 0.18
Weighted-average common shares outstanding
Basic	16,173,674	15,996,432
Diluted	16,407,751	16,319,983