6. Income Taxes: Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($)	12 Months Ended
	Aug. 31, 2017		Aug. 31, 2016		Aug. 31, 2015
Details
Current Federal Tax Expense (Benefit)	$ 217,184		$ 169,869
Current State and Local Tax Expense (Benefit)	(22,800)		(5,834)
Other Tax Expense Benefit, depreciation	39,357		32,269
Other Tax Expense Benefit, inventory reserve	7,982		6,494
Current	1,758,603	[1]	1,397,741	[1]	$ 1,208,277
Deferred income taxes	(20,009)		(2,947)		$ (26,672)
Income tax expense benefit net	$ 1,738,594		$ 1,394,794

[1] Note 6