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Schedule II - Valuation And Qualifying Accounts
 12 Months Ended
Sep. 30, 2011
Schedule II - Valuation And Qualifying Accounts [Abstract]  
Schedule II - Valuation And Qualifying Accounts

Schedule II

OYO Geospace Corporation and Subsidiaries

Valuation and Qualifying Accounts

(In Thousands)

 

     Balance at
Beginning
of Period		      Charged
to Costs
And
Expenses		     Charged
to Other
Assets		      (Deductions)
And
Additions		     Balance at
End of
Period		  

Year ended September 30, 2011

             

Allowance for doubtful accounts on accounts and notes receivable

    $ 334       $ 128      $ —         $ (51 )    $  411   

Year ended September 30, 2010

             

Allowance for doubtful accounts on accounts and notes receivable

      848         (479 )      —           (35 )      334   

Year ended September 30, 2009

             

Allowance for doubtful accounts on accounts and notes receivable

      1,329         318        —           (799 )      848