Condensed Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Income Statement [Abstract]
Net revenues	$ 6,012,193	$ 5,942,082	$ 16,014,539	$ 14,602,464
Cost of revenues	1,194,815	1,132,695	3,541,903	3,308,277
Gross margin	4,817,378	4,809,387	12,472,636	11,294,187
Operating expenses
Selling, general, and administrative	1,680,707	1,607,317	5,079,985	5,234,311
Research and development	348,427	348,285	1,161,124	981,633
Total operating expenses	2,029,134	1,955,602	6,241,109	6,215,944
Income from operations	2,788,244	2,853,785	6,231,527	5,078,243
Other income (expense)
Interest income	4,553	4,391	13,507	13,394
Gain (loss) on currency exchange	7,733	(35,632)	(35,490)	(78,107)
Total other income (expense)	12,286	(31,241)	(21,983)	(64,713)
Income from operations before provision for income taxes	2,800,530	2,822,544	6,209,544	5,013,530
Provision for income taxes	(891,191)	(970,122)	(2,048,383)	(1,661,972)
Net Income	$ 1,909,339	$ 1,852,422	$ 4,161,161	$ 3,351,558
Earnings per share
Basic	$ .11	$ .11	$ .24	$ .20
Diluted	$ .11	$ .11	$ .24	$ .20
Weighted-average common shares outstanding
Basic	17,028,634	16,862,128	17,000,228	16,847,191
Diluted	17,227,540	17,073,155	17,219,835	17,070,334