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SHARE OPTION PLANS (Details) (USD $)
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Tranche 1 [Member]
    
Grant date Nov. 08, 2005 Nov. 08, 2005
Options outstanding 0 64,400
Number of options granted 0 0
Options exercised 0 (64,400)
Options cancelled/ forfeited/ expired 0 0
Options outstanding 0 0
Options vested and exercisable 0 0
Weighted average fair value at the grant date (USD) $ 2.69  
Tranche 2 [Member]
    
Grant date Oct. 22, 2007 Oct. 22, 2007
Options outstanding 5,000 5,000
Number of options granted 0 0
Options exercised 0 0
Options cancelled/ forfeited/ expired 0 0
Options outstanding 5,000 5,000
Options vested and exercisable 5,000 0
Weighted average fair value at the grant date (USD) $ 4.55  
Tranche 3 [Member]
    
Grant date Mar. 28, 2008 Mar. 28, 2008
Options outstanding 130,167 156,167
Number of options granted 0 0
Options exercised 0 26,000
Options cancelled/ forfeited/ expired (5,667) 0
Options outstanding 0 130,167
Options vested and exercisable 124,500 130,167
Weighted average fair value at the grant date (USD) $ 2.69  
Tranche 4 [Member]
    
Grant date Jun. 16, 2008 Jun. 16, 2008
Options outstanding 10,000 10,000
Number of options granted 0 0
Options exercised 0 0
Options cancelled/ forfeited/ expired 0 0
Options outstanding 10,000 10,000
Options vested and exercisable 10,000 10,000
Weighted average fair value at the grant date (USD) $ 3.42  
Tranche 5 [Member]
    
Grant date Jan. 04, 2010 Jan. 04, 2010
Options outstanding 120,000 125,000
Number of options granted 0 0
Options exercised 0 0
Options cancelled/ forfeited/ expired 0 (5,000)
Options outstanding 120,000 120,000
Options vested and exercisable 120,000 120,000
Weighted average fair value at the grant date (USD) $ 7.20  
Tranche 6 [Member]
    
Grant date Jan. 03, 2011 Jan. 03, 2011
Options outstanding 120,000 0
Number of options granted 0 120,000
Options exercised 0 0
Options cancelled/ forfeited/ expired (5,000) 0
Options outstanding 115,000 120,000
Options vested and exercisable 115,000 0
Weighted average fair value at the grant date (USD) $ 6.08  
Tranche 7 [Member]
    
Grant date Jan. 03, 2012 Jan. 03, 2012
Options outstanding 0 0
Number of options granted 0 0
Options exercised 0 0
Options cancelled/ forfeited/ expired 0 0
Options outstanding 365,000 0
Options vested and exercisable 365,000 0
Weighted average fair value at the grant date (USD) $ 1.45