Earnings Per Share: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - USD ($)	3 Months Ended	9 Months Ended
May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Details
Net income for the year	$ 1,206,135	$ 908,730	$ 2,001,068	$ 1,572,935
Weighted Average Number of Shares Issued, Basic	2,286,294	2,458,170	2,286,294	2,470,566
Weighted average number of common shares outstanding: Diluted	2,286,294	2,458,170	2,286,294	2,470,566

This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1448-109256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e2646-109256

Name:	us-gaap_WeightedAverageNumberOfSharesIssuedBasic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration