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Note 8. Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Payments to Acquire Property, Plant, and Equipment $ 932 $ 618
Leasehold Improvements Funded by Landlords 857  
Accrued Liabilities and Other Liabilities 121  
Other Liabilities, Noncurrent 1,004 395
Leasehold Improvements [Member]
   
Payments to Acquire Property, Plant, and Equipment 1,300  
Deferred Rent [Member]
   
Other Liabilities, Noncurrent $ 640