Note 9 - Fair Value Measurement of Instruments (Detail) - Summary of derivatives designated as hedging instruments: (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 31, 2012
Interest Rate Swap
Change in Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Loss	$ 26

Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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