Note 12 - Fair Value Measurement of Instruments (Detail) - Summary of derivatives designated as hedging instruments: (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2012
Interest Rate Swap
Twelve months ended September 30, 2012	$ (384)

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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