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Income Taxes (Tables)
12 Months Ended
Sep. 30, 2012
Income Taxes [Abstract]  
Income taxes from continuing operations in accompanying consolidated statements of operations
                         
    2012     2011     2010  

Current provision:

                       

Federal

  $ 6,615     $ 6,011     $ 6,708  

State and foreign

    290       765       408  
   

 

 

   

 

 

   

 

 

 

Total current provision

    6,905       6,776       7,116  
   

 

 

   

 

 

   

 

 

 

Deferred (benefit) provision :

                       

Federal

    (835     (652     (1,883

State

    107       (520     (254
   

 

 

   

 

 

   

 

 

 

Total deferred (benefit) provision

    (728     (1,172     (2,137
   

 

 

   

 

 

   

 

 

 

Total provision

  $ 6,177     $ 5,604     $ 4,979  
   

 

 

   

 

 

   

 

 

 
Reconciliation of difference between amounts of income tax provision
                         
    2012     2011     2010  

Amount at statutory federal income tax rate

  $ 5,707     $ 5,785     $ 1,884  

Change because of the following items:

                       

State taxes

    236       412       121  

Stock-based compensation

    36       (7     255  

Valuation allowance

    303       21       2,780  

Other

    (105     (607     (61
   

 

 

   

 

 

   

 

 

 

Income tax provision

  $ 6,177     $ 5,604     $ 4,979  
   

 

 

   

 

 

   

 

 

 
Components of deferred income taxes and result from differences in the recognition of transactions for income tax and financial reporting purposes
                 
    2012     2011  

Depreciable assets

  $ 1,146     $ 827  

Deferred revenue

    85       101  

Accruals and reserves

    362       566  

Stock-based compensation

    3,883       6,927  

Impaired investments

    6,455       6,151  

Unrealized (gains) losses on investments

    (131     96  

Other

    755       718  

Valuation allowance

    (6,530     (6,227
   

 

 

   

 

 

 

Total deferred tax assets

    6,025       9,159  

Less current deferred tax assets

    (219     (327
   

 

 

   

 

 

 

Noncurrent deferred tax assets

  $ 5,806     $ 8,832  
   

 

 

   

 

 

 
Summary of reconciliation of unrecognized tax benefits
                         
    2012     2011     2010  

Beginning of fiscal year

  $ 1,564     $ 1,948     $ 2,042  

Increases in tax positions for prior years

    5       3        

Decreases in tax positions for prior years

    (3     (85     (104

Increases in tax positions for current year

    72       55       92  

Settlements with taxing authorities

          (53      

Lapse of the statute of limitations

    (203     (304     (82
   

 

 

   

 

 

   

 

 

 

End of fiscal year

  $ 1,435     $ 1,564     $ 1,948