Note 3 - Segment Information (Detail) - Summary of total assets on the Company's segments: (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Balance	$ 344,897	$ 358,688
Carbon Fibers [Member]
Balance	293,744	301,440
Technical Fibers [Member]
Balance	30,049	31,597
Corporate / Other [Member]
Balance	$ 21,104	$ 25,651