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EQUITY-BASED INCENTIVE AWARDS: (Tables)
 12 Months Ended
Sep. 30, 2013
EQUITY-BASED INCENTIVE AWARDS:  
Schedule of assumptions used in connection with the Black-Scholes option pricing calculation

 

 
   Stock Option
Pricing
Assumptions		  
 
   2013   2012  

Risk-free interest rate

     1.46 %   2.39 %

Dividend yield

     1.10 %   1.10 %

Expected volatility

     25.00 %   27.90 %

Expected life in years

     6     6  
Schedule of stock options issued and outstanding by grant year

 

 
    
    
    
    
   Exercisable  
 
   Exercise
Price		   Number
Outstanding		   Remaining
Weighted-Average
Contractual Life		   Weighted-Average
Exercise Price		   Number
Exercisable		   Weighted-Average
Exercise Price		  

Fiscal 2007

   $18.00     25,000   3.20 years   $ 18.00     25,000   $ 18.00  

Fiscal 2010

   $51.50     5,500   6.58 years   $ 51.50     3,300   $ 51.50  

Fiscal 2012

   $53.80 - $65.97     6,500   8.09 years   $ 54.74     1,300   $ 54.74  

Fiscal 2013

   $62.33     8,000   9.07 years   $ 62.33     —   $ —  
                               

 

         45,000       $ 35.28     29,600   $ 23.35  
                               
Summary of stock options activity

 

 
   Number
of
Shares		   Weighted
Average
Exercise
Price		  

Outstanding at September 2012

     37,042   $ 29.43  

Granted

     8,000     62.33  

Exercised

     (42 )   28.80  

Forfeited/Expired

     —     —  
           

Outstanding at September 2013

     45,000   $ 35.28  
           
Schedule of restricted stock unit awards issued and outstanding

 

 
   Restricted Stock Units(1)   Restricted Stock Units(2)   Restricted Stock Units(3)

Date of award:

   November 22, 2010   October 26, 2011   October 23, 2012

Original number of awards issued:

   12,000   15,900   15,000

Service period:

   36 months   36 months   36 months

Estimated fair value of award at grant date:

   $864,000   $855,000   $935,000

Awards outstanding at September 2013

   4,000   10,600   15,000

Fair value of non-vested awards at September 2013:

   $328,000   $868,000   $1,228,000
(1)
8,000 of the restricted stock unit awards were vested as of September 2013. The remaining 4,000 restricted stock units will vest on November 22, 2013.

(2)
5,300 of the restricted stock units were vested as of September 2013. The remaining 10,600 restricted stock units will vest in equal amounts on October 25, 2013 and October 25, 2014.

(3)
The 15,000 restricted stock units will vest in equal amounts on October 23, 2013, October 23, 2014 and October 23, 2015.
Summary of restricted stock unit activity

 

 
   Number
of
Shares		   Weighted
Average
Fair Value		  

Nonvested restricted stock units at September 2012

     36,700   $ 65.00  

Granted

     15,000   $ 62.33  

Vested

     (22,100 ) $ 62.86  

Expired

     —   $ —  
             

Nonvested restricted stock units at September 2013

     29,600   $ 81.89