Revolving Credit Facility	6 Months Ended
Mar. 31, 2012
Revolving Credit Facility [Abstract]
Revolving Credit Facility	10. Revolving Credit Facility In February 2011, the Company extended its unsecured revolving credit facility through March 2012 and reduced the credit facility to $15.0 million. As of March 31, 2012, the credit facility expired and was not renewed.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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