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Accrued Liabilities
12 Months Ended
Dec. 31, 2012
Payables and Accruals [Abstract]  
Accrued Liabilities
Accrued Liabilities

Accrued liabilities consist of the following:
 
As of December 31,
 
2012
 
2011
Accrued salaries and other compensation
$
1,345

 
$
987

Other accrued liabilities
798

 
1,247

Total
$
2,143

 
$
2,234