Short-Term Investments

12 Months Ended

Sep. 30, 2011

Short-Term Investments [Abstract]

Short-Term Investments

2. Short-Term Investments

Short-term investments consist of corporate debt instruments that are due in less than one year, which are intended to be held until maturity and amounted to $3,020, which approximates fair value at September 30, 2010. All short-term investments matured during fiscal year 2011, resulting in no short-term investments at September 30, 2011.