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Other Accrued Liabilities
 12 Months Ended
Dec. 31, 2017
Payables and Accruals [Abstract]  
Other Accrued Liabilities
OTHER ACCRUED LIABILITIES
 
Other accrued liabilities are comprised of the following (in thousands):
 
December 31,
 
2017
 
2016
Accrued taxes
 
$
1,562

 
$
739

Accrued sales rebates
 
420

 
327

Accrued health insurance costs
 
285

 
96

Accrued warranty
 
50

 
49

Other
 
33

 
416

Accrued interest expense
 
20

 
637

Total other accrued liabilities
 
$
2,370

 
$
2,264


 
The following table summarizes product warranty expense accruals and settlements for the two years ended December 31, 2017 (in thousands):
 
 
 
Accrual
balance at
beginning of
year
 
Accruals for
warranties
 
Settlements
made
 
Accrual
balance at
end of
year
2017
 
$
49

 
$
91

 
$
(90
)
 
$
50

2016
 
39

 
116

 
(106
)
 
49