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PROPERTY AND EQUIPMENT (Tables)
6 Months Ended
Jun. 30, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property and equipment consisted of the following (in thousands):
 
June 30,
2013
 
December 31,
2012
Computer and office equipment, including equipment acquired under capital leases
$
15,500

 
$
14,443

Software capitalized for internal use
10,308

 
9,939

Vehicles, including equipment acquired under capital leases
1,603

 
1,540

Medical equipment
19,066

 
16,466

Work in progress
9,585

 
4,315

Furniture and fixtures
3,784

 
3,219

Leasehold improvements
9,866

 
7,164

 
69,712

 
57,086

Less: Accumulated depreciation
(37,792
)
 
(33,365
)
Property and equipment, net
$
31,920

 
$
23,721