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ACCRUED LIABILITIES
6 Months Ended
Jun. 30, 2020
ACCRUED LIABILITIES  
ACCRUED LIABILITIES

9.    ACCRUED LIABILITIES

Accrued liabilities consist of the following (in thousands):

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June 30, 

​

December 31, 

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2020

    

2019

Compensation and fringe benefits

​

$

9,588

​

$

12,967

Warranty reserve

​

 

1,508

​

 

1,075

Income taxes payable

​

​

2,852

​

​

2,231

Right of use liabilities

​

​

4,016

​

​

3,203

Other accrued expenses

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4,246

​

 

3,525

​

​

$

22,210

​

$

23,001

​