STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Statement [Abstract]
Net revenues	$ 24,137,913	$ 19,972,079	$ 18,314,248
Cost of revenues	6,307,800	4,601,513	4,392,477
Gross margin	17,830,113	15,370,566	13,921,771
Operating expenses
Selling, general, and administrative	8,198,184	6,693,691	6,736,767
Research and development	1,367,645	1,445,069	1,328,476
Total operating expenses	9,565,829	8,138,760	8,065,243
Income from operations	8,264,284	7,231,806	5,856,528
Other income (expense)
Interest income	15,857	18,014	17,935
Interest expense	(38,188)	0	0
Gain (loss) on currency exchange	(1,686)	(13,428)	(181,534)
Total other income (expense)	(24,017)	4,586	(163,599)
Income before provision for income taxes	8,240,267	7,236,392	5,692,929
Provision for income taxes	(2,452,670)	(2,286,256)	(1,849,968)
Net Income	$ 5,787,597	$ 4,950,136	$ 3,842,961
Earnings per share
Basic	$ 0.34	$ 0.29	$ 0.23
Diluted	$ 0.33	$ 0.29	$ 0.23
Weighted-average common shares outstanding
Basic	17,239,490	17,028,566	16,864,670
Diluted	17,515,917	17,209,506	17,032,158