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COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2012
COMMITMENTS AND CONTINGENCIES [Abstract]  
Future annual minimum rental payments due under non-cancellable operating leases
At December 31, 2012, future annual minimum rental payments due under non-cancellable operating leases are as follows (in thousands):
 
2013
 
$
2,264
 
2014
 
 
2,125
 
2015
 
 
1,956
 
2016
 
 
1,701
 
2017
 
 
1,566
 
Thereafter
 
 
11,611
 
 
$
21,223