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Note 10 - Geographic and Segment Information (Details) - Operating Income by Geographic Distribution (USD $)	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Segment Reporting Information [Line Items]
Total operating income	$ 1,765,231	$ 1,493,771	$ 4,932,764	$ 3,337,290
BRAZIL
Segment Reporting Information [Line Items]
Total operating income	70,464	(156,594)	(75,491)	(263,353)
INDIA
Segment Reporting Information [Line Items]
Total operating income	72		5,872
North America [Member]
Segment Reporting Information [Line Items]
Total operating income	$ 1,694,695	$ 1,650,365	$ 5,002,383	$ 3,600,643

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration