Note 17 - Statements of Cash Flows - Supplemental Disclosures of Cash Flow Information (Details) - USD ($)	12 Months Ended
Aug. 31, 2017	Aug. 31, 2016
Cash paid during the year for income tax	$ 699,519	$ 610,000
Cash paid during the year for interest	$ 20,382	$ 13,261

Amount of cash paid, after deduction of cash paid for capitalized interest, for interest. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration