Condensed Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Income Statement [Abstract]
Net revenues	$ 8,553,068	$ 6,748,518	$ 22,978,565	$ 17,872,044
Cost of revenues	2,022,972	1,444,764	5,874,062	4,334,699
Gross margin	6,530,096	5,303,754	17,104,503	13,537,345
Operating expenses
Selling, general, and administrative	2,604,168	1,954,871	7,352,404	5,766,563
Research and development	508,356	253,799	1,353,503	952,635
Total operating expenses	3,112,524	2,208,670	8,705,907	6,719,198
Income from operations	3,417,572	3,095,084	8,398,596	6,818,147
Other income (expense)
Interest income	7,825	4,663	18,313	13,548
Interest expense	(38,188)	0	(114,846)	0
Gain (loss) on currency exchange	9,441	(14,913)	(3,820)	5,573
Total other income (expense)	(20,922)	(10,250)	(100,353)	19,121
Income before provision for income taxes	3,396,650	3,084,834	8,298,243	6,837,268
Benefit (Provision) for income taxes	(990,613)	(1,004,805)	(701,415)	(2,199,914)
Net Income	$ 2,406,037	$ 2,080,029	$ 7,596,828	$ 4,637,354
Earnings per share
Basic	$ 0.14	$ 0.12	$ 0.44	$ 0.27
Diluted	$ 0.13	$ 0.12	$ 0.43	$ 0.27
Weighted-average common shares outstanding
Basic	17,339,937	17,241,891	17,308,414	17,233,470
Diluted	17,904,428	17,585,528	17,850,171	17,454,864