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Capital Leases
 12 Months Ended
Dec. 31, 2011
Capital Leases [Abstract]  
Capital Leases
10. CAPITAL LEASES

Assets under capital leases were $401 and $381 at December 31, 2011 and 2010, respectively. Accumulated depreciation on assets under capital leases was $294 and $202 at December 31, 2011 and 2010, respectively.