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Related Party Transactions (Details) (Stephen Sadler [Member], USD $)
12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Stephen Sadler [Member]
     
Consultancy fees earned by director for business acquisition related activities $ 600,000 $ 600,000 $ 500,000
Bonus fees earned by director $ 480,000