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Comprehensive Loss
9 Months Ended
Sep. 30, 2011
Comprehensive Loss [Abstract] 
Comprehensive Income (Loss) Note [Text Block]
Comprehensive Income (Loss)

The following table summarizes the components of comprehensive income (loss) (in thousands):

 
Three months ended
 
Nine months ended
 
September 30,
 
September 30,
 
2011
 
2010
 
2011
 
2010
 
 
 
 
 
 
 
 
Net income (loss)
$
2,081

 
$
3,574

 
$
(329
)
 
$
11,283

Unrealized loss from available-for-sale securities
(1
)
 
1

 
(2
)
 
16

Foreign currency translation gain (loss)
(5,999
)
 
9,535

 
4,126

 
419

Comprehensive income (loss)
(3,919
)
 
13,110

 
3,795

 
11,718

Less: comprehensive income attributable to noncontrolling interests

 
1,318

 

 
1,615

Comprehensive income (loss) attributable to MRV
$
(3,919
)
 
$
11,792

 
$
3,795

 
$
10,103