Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities

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Accrued Liabilities
 6 Months Ended
Jun. 30, 2018
Accrued Liabilities and Other Liabilities [Abstract]  
Accrued Liabilities
8.
Accrued Liabilities
 
Accrued liabilities consisted of the following:
 
   
June 30,
    
December 31,
  
   
2018
    
2017
  
Salaries, benefits and related expenses   $ 2,043     $ 2,850  
Severance     381       -  
Device maintenance     109       121  
Device warranty     311       232  
Clinical trials     212       136  
Capital lease obligation     35       34  
Other     71       130  
Total   $ 3,162     $ 3,503  
 
A reconciliation of the changes in the current portion of maintenance and warranty liabilities for the six-month period ended June 30, 2018 is as follows:
 
   
Maintenance
    
Warranty
    
Total
  
Balance at December 31, 2017   $ 121     $ 232     $ 353  
Additions for estimated future expense     -       213       176  
Incurred costs     (12 )     (134 )     (109 )
Balance at June 30, 2018   $ 109     $ 311     $ 420