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Accrued liabilities - Note 5
 12 Months Ended
Dec. 31, 2015
Notes to Financial Statements  
Accrued liabilities - Note 5

5. ACCRUED LIABILITIES

Accrued liabilities consists of the following (in thousands):

      Year Ended December 31,
      2015     2014
Bonuses   $ 1,150    $ 889 
Payroll and payroll taxes     353      322 
Compensated absences     357      336 
Deferred rent credit     146      134 
Warranty     239      35 
Adverse purchase commitments     500      500 
Professional fees     57      78 
Other     597      435 
    $ 3,399    $ 2,729