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Share-Based Compensation: (Tables)
12 Months Ended
Sep. 30, 2012
1998 Plan
 
Share-based compensation  
Summary of option activity

 

 

 
  Options   Weighted
Average
Exercise
Price
  Aggregate
Intrinsic
Value
 

Outstanding at September 30, 2009

    606,549   $ 9.45   $  

Granted

             

Exercised

             

Cancelled

    (115,349 )   10.49      
               

Outstanding at September 30, 2010

    491,200   $ 9.21   $  

Granted

             

Exercised

             

Cancelled

    (103,400 )   10.95      
               

Outstanding at September 30, 2011

    387,800   $ 8.74   $  

Granted

             

Exercised

             

Cancelled

    (11,600 )   12.65      
               

Outstanding at September 30, 2012

    376,200   $ 8.62      
               

Vested and expected to vest

    375,200   $ 8.60   $  
               

Options exercisable at September 30, 2012

    366,200   $ 8.64   $  
               

       

Summary of information about stock options

 

 

 
  Options Outstanding   Options Exercisable  
Range of Exercise Prices
  Outstanding
As of September 30,
2012
  Weighted-
Average
Remaining
Contractual
Life
  Weighted-
Average
Exercise
Price
  As of
September 30,
2012
  Weighted-
Average
Exercise
Price
 

$ —  - $  5.00

    181,800     0.6   $ 4.21     181,800   $ 4.21  

$  5.01 - $10.00

    101,400     3.3     7.60     91,400     7.58  

$10.01 - $15.00

    47,500     2.5     13.62     47,500     13.62  

$15.01 - $20.00

    12,000     2.5     16.93     12,000     16.93  

$20.01 - $27.00

    33,500     4.3     25.57     33,500     25.57  
                       

 

    376,200     1.9   $ 8.62     366,200   $ 8.64  
                       
Restricted Plan
 
Share-based compensation  
Schedule of restricted stock awards

 

 

 
  Non-vested
Stock Awards
  Weighted Average
Share Price
 

Balance at September 30, 2009

    9,050   $ 5.52  

Granted

    41,150     4.86  

Issued

    (37,862 )   5.02  

Cancelled

         
           

Balance at September 30, 2010

    12,338   $ 4.86  

Granted

    43,385     4.61  

Issued

    (42,237 )   5.49  

Cancelled

         
           

Balance at September 30, 2011

    13,486   $ 4.61  

Granted

         

Issued

         

Cancelled

         
           

Balance at September 30, 2012

    13,486   $ 4.61  
           
2009 Plan
 
Share-based compensation  
Summary of option activity

 

 

 
  Options   Weighted
Average
Exercise
Price
  Aggregate
Intrinsic
Value
 

Outstanding at September 30, 2010

    50,000   $ 4.50   $  

Granted

    180,000     5.28      

Exercised

             

Cancelled

             
               

Outstanding at September 30, 2011

    230,000   $ 5.11   $  

Granted

    280,000     3.92      

Exercised

             

Cancelled

    (50,000 )   4.50      
               

Outstanding at September 30, 2012

    460,000   $ 4.45   $  
               

Vested and expected to vest

    460,000   $ 4.45   $  
               

Options exercisable at September 30, 2012

    60,003   $ 5.28   $  
               

        

Summary of information about stock options

 

 

 
  Options Outstanding   Options Exercisable  
Range of Exercise Prices
  Outstanding
As of
September 30,
2012
  Weighted-
Average
Remaining
Contractual Life
  Weighted-
Average
Exercise Price
  As of
September 30, 2012
  Weighted-
Average
Exercise
Price
 

$ —  - $  5.00

    280,000     9.4   $ 3.92       $  

$5.01 - $10.00

    180,000     8.9     5.28     60,003     5.28  
                       

 

    460,000     9.2   $ 4.45     60,003   $ 5.28  
                       

        

Schedule of fair value assumptions used to record compensation expense

 

 

2009 Plan  
 
  Fiscal Year Ended September 30,  
 
  2012   2011   2010  

Expected dividend rate

             

Expected volatility

    71.1 %   63.0 %   70.0 %

Weighted average risk-free interest rate

    2.1 %   1.9 %   2.6 %

Expected lives (years)

    8.70     10.00     4.15