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Fair Value of Financial Instruments
9 Months Ended
Jun. 30, 2011
Fair Value of Financial Instruments [Abstract]  
FAIR VALUE OF FINANCIAL INSTRUMENTS
4. FAIR VALUE OF FINANCIAL INSTRUMENTS
     At June 30, 2011 and September 30, 2010, the Company’s financial instruments included cash and cash equivalents, short-term investments, trade and other receivables, other current assets, accounts payable and other current liabilities. Due to the short-term maturities of cash and cash equivalents, trade and other receivables, other current assets, accounts payable and other current liabilities, the carrying amounts approximate fair value at the respective balance sheet dates.
     The Company measures certain financial assets and liabilities at fair value on a recurring basis, including short-term investments.
     The Company had no short-term investments at June 30, 2011. The fair value measurements of these short-term investments at September 30, 2010 were determined using the following inputs:
                                 
    As of September 30, 2010 (in 000’s)  
    Fair Value Measurements at Reporting Date Using:  
            Quoted Prices in     Significant Other     Significant  
            Active Markets for     Observable     Unobservable  
            Identical Assets     Inputs     Inputs  
    Total     (Level 1)     (Level 2)     (Level 3)  
Short-term investments:
                               
U.S. Treasury bills
  $ 14,993     $ 14,993     $     $  
FDIC guaranteed bonds
    5,019       5,019              
 
                       
Total
  $ 20,012     $ 20,012     $     $  
 
                       
     Investments in U.S. Treasury bills and FDIC guaranteed bonds classified as available-for-sale were measured using unadjusted quoted market prices (Level 1) at the reporting date.