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SHARE BASED COMPENSATION PLANS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Effect to income of share-based compensation expense, net of tax benefits [Abstract]      
Total employee stock-based compensation expense recognized in income, net of tax effects of $192, $66 and $51, respectively $ 334 $ 120 $ 103
Tax effects of employee's stock-based compensation expense recognized income 192 66 51
Stock based compensation expense not yet recognized in income $ 400    
Weighted average remaining period for unrecognized stock based compensation 1 year 11 months 5 days    
Period that options are issued 10 years    
Percentage of options vesting at either grant date or over four year period 100.00%    
Period that options vest 4 years    
Vested in period, fair value $ 200 $ 100 $ 100
Number of Shares [Roll Forward]      
Options outstanding, beginning of period (in shares) 235,766 318,648  
Granted (in shares) 0 0 0
Exercised (in shares) (46,678) (82,882)  
Forfeited or expired (in shares) 0 0  
Options outstanding, end of period (in shares) 189,088 235,766 318,648
Options exercisable end of year (in shares) 189,088 235,766  
Weighted Average Exercise Price [Roll Forward]      
Options outstanding, beginning of period (in dollars per share) $ 25.20 $ 24.44  
Granted (in dollars per share) 0 0  
Exercised (in dollars per share) 22.98 22.31  
Forfeited or expired (in dollars per share) 0 0  
Options outstanding, end of period (in dollars per share) 25.74 25.20 $ 24.44
Options exercisable end of year (in dollars per share) $ 25.74 $ 25.20  
Weighted Average Remaining Contractual Term (Yrs) [Abstract]      
Options outstanding , weighted average remaining contractual term (Yrs) 3 years 1 month 28 days 3 years 9 months 11 days 4 years 2 months 5 days
Options exercisable end of year, weighted average remaining contractual term (Yrs) 3 years 1 month 28 days 3 years 9 months 11 days  
Aggregate Intrinsic Value [Abstract]      
Options outstanding, beginning of period $ 2,507 $ 4,376  
Granted 0 0  
Exercised 925 1,389 $ 800
Forfeited or expired 0 0  
Options outstanding, end of period 4,671 2,507 $ 4,376
Options exercisable end of year $ 4,671 $ 2,507  
Nonvested Shares Outstanding, Number of Shares [Roll Forward]      
Nonvested shares outstanding, beginning of period (in shares) 4,000 4,000  
Granted (in shares) 51,217 4,267  
Vested (in shares) (11,215) (4,267)  
Forfeited or expired (in shares) 0 0  
Nonvested shares outstanding, end of period (in shares) 44,002 4,000 4,000
Nonvested Shares Outstanding, Weighted Average Grant Date Fair Value [Roll Forward]      
Nonvested shares outstanding, beginning of period (in dollars per share) $ 28.61 $ 25.67  
Granted (in dollars per share) 41.10 37.82  
Vested (in dollars per share) 37.81 35.07  
Forfeited or expired (in dollars per share) 0 0  
Nonvested shares outstanding, end of period (in dollars per share) $ 40.80 $ 28.61 $ 25.67