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Fair Value of Measurements
9 Months Ended
Jun. 30, 2011
Fair Value of Measurements [Abstract]  
FAIR VALUE OF MEASUREMENTS
3. FAIR VALUE OF MEASUREMENTS
     The Company measures the fair value of certain of its financial assets on a recurring basis. A fair value hierarchy is used to rank the quality and reliability of the information used to determine fair values. Financial assets and liabilities carried at fair value will be classified and disclosed in one of the following three categories:
    Level 1-Quoted prices in active markets for identical assets and liabilities.
 
    Level 2-Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets and liabilities, quoted prices in the markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
 
    Level 3-Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
     As of June 30, 2011 and September 30, 2010, the Company’s cash equivalents held in money market mutual funds of approximately $54.2 million and $25.2 million, respectively, are all valued using quoted prices generated by market transactions involving identical assets, or Level 1, as defined by the fair value hierarchy noted above.