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SHAREHOLDERS' EQUITY: (Details 2)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2013
2006 Plan
Aug. 11, 2011
2006 Plan
Apr. 27, 2011
2006 Plan
Sep. 30, 2013
2006 Plan
Stock Options
Sep. 30, 2013
2006 Plan
Stock Options
Minimum
Sep. 30, 2013
2006 Plan
Stock appreciation right
Sep. 30, 2013
2006 Plan
Stock appreciation right
Minimum
Sep. 30, 2013
2006 Plan
Performance shares
Minimum
Sep. 30, 2013
2006 Plan
Performance shares
Maximum
Sep. 30, 2013
2000 Plans
Stock Option Plans                      
Number of shares approved for grant     3,001,625 1,250,000              
Number of shares of common stock that may be delivered to participants under the plan 777,347 2,750,000                 251,625
Expiration term         10 years   10 years        
Performance period                 1 year 5 years  
Exercise price expressed as a percentage of the fair market value of the shares on the date of grant           100.00%   100.00%