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EQUITY Share-based compensation expense (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Equity [Abstract]        
Share-based Compensation $ 39 $ 133 $ 181 $ 265