Note 5 - Hedging Positions and Corresponding Fair Values (Details) - Foreign Exchange Contract [Member] $ in Thousands, € in Millions, £ in Millions, ₨ in Billions	May 31, 2016 EUR (€)	May 31, 2016 INR (₨)	May 31, 2016 USD ($)	May 31, 2016 GBP (£)	Aug. 31, 2015 USD ($)
United Kingdom, Pounds | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Asset, Notional Amount			$ 41,071		$ 15,831
Fair Value Asset (Liability)			(234)		280
Euro Member Countries, Euro | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Asset, Notional Amount			4,975		20,263
Fair Value Asset (Liability)			64		143
India, Rupees | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Asset, Notional Amount			55,510		56,320
Fair Value Asset (Liability)			(32)		(990)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Asset, Notional Amount	€ 4.5	₨ 4	101,556	£ 28.3	92,414
Fair Value Asset (Liability)			(202)		(567)
Fair Value Asset (Liability)			$ (202)		$ (567)