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PROPERTY AND EQUIPMENT, NET (Tables)
12 Months Ended
Dec. 31, 2012
FIXED ASSETS, NET [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property and equipment consists of the following:
 
 
 
Estimated Useful Life  (in years)
 
As of December 31,
 
 
 
 
2011
 
2012
Cost:
 
 
 
 

 
 

Computer hardware and software
 
2 - 5
 
$
779

 
$
1,081

Equipment
 
4 - 10
 
700

 
1,636

Vehicles
 
3
 
40

 
43

Leasehold improvements
 
Term of
lease
 
410

 
482

 
 
 
 
1,929

 
3,242

Accumulated depreciation and amortization
 
 
 
 

 
 

Computer hardware and software
 
 
 
547

 
759

Equipment
 
 
 
367

 
1,111

Vehicles
 
 
 
15

 
34

Leasehold improvements
 
 
 
365

 
411

 
 
 
 
1,294

 
2,315

Property and equipment, net
 
 
 
$
635

 
$
927