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6. Accrued Expenses
6 Months Ended
Jun. 30, 2017
Payables and Accruals [Abstract]  
Accrued Expenses

Accrued expenses consisted of the following:

 

    June 30,
2017
   

December 31,

2016

 
Payroll and incentive compensation   $ 3,207     $ 1,560  
Real estate taxes     331       394  
Other     275       215  
    $ 3,813     $ 2,169