Note 5 - Derivative Instruments (Details) - Hedging Positions and Corresponding Fair Values In Thousands, unless otherwise specified	Nov. 30, 2014 USD ($)	Aug. 31, 2014 USD ($)	Nov. 30, 2014 India, Rupees USD ($)	Nov. 30, 2014 India, Rupees INR	Aug. 31, 2014 India, Rupees USD ($)	Nov. 30, 2014 Philippines, Pesos USD ($)	Nov. 30, 2014 Philippines, Pesos PHP	Aug. 31, 2014 Philippines, Pesos USD ($)
Note 5 - Derivative Instruments (Details) - Hedging Positions and Corresponding Fair Values [Line Items]
Gross Notional Value	$ 50,795us-gaap_DerivativeAssetNotionalAmount	$ 44,979us-gaap_DerivativeAssetNotionalAmount	$ 41,295	2,800,000	$ 38,479	$ 9,500	426,000	$ 6,500
Fair Value Asset (Liability)	$ 636	$ 815	$ 695		$ 700	$ (59)		$ 115

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Name:	us-gaap_DerivativeAssetNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant