Revolving Credit Facility	3 Months Ended
Dec. 31, 2011
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. Borrowings under the credit facility, if any, will bear interest at a benchmark rate plus an applicable margin based upon the Company’s funded debt to EBITDA ratio. In connection with the credit facility, the Company is required to maintain certain financial and nonfinancial covenants. As of December 31, 2011, the Company had no debt outstanding under the credit facility and was in compliance with all covenants.

- 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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