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Rental Equipment
 12 Months Ended
Dec. 31, 2011
Rental Equipment Disclosure [Abstract]  
Rental Equipment
Rental Equipment
Rental equipment consists of the following:
 
 
December 31,
 
2011
 
2010
Rental equipment
$
4,209

 
$
3,787

Less accumulated depreciation
(1,592
)
 
(1,507
)
Rental equipment, net
$
2,617

 
$
2,280