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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2016
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

7.  PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment are stated at cost and are depreciated and amortized over a period of three to 39 years generally under the straight-line method for financial reporting purposes and accelerated methods for income tax purposes.

Property, plant and equipment as of December 31 were as follows (in thousands):

 

     2016      2015  

Land

    $ 2,089      $ 2,089  

Buildings and improvements

      43,950        44,647  

Machinery and equipment

      237,434        231,305  

Furniture and fixtures

      5,656        5,652  

Construction in-progress and deposits

      2,471        3,839  
  

 

 

     

 

 

  
     291,600        287,532  

Accumulated depreciation and amortization

      (254,026 )       (250,082 ) 
  

 

 

     

 

 

  

Net balance

    $ 37,574      $ 37,450  
  

 

 

     

 

 

  

Depreciation expense for the years ended December 31, 2016, 2015 and 2014 was approximately $8,304,000, $9,028,000, and $9,833,000 respectively. As of December 31, 2016, the Company had approximately $2,393,000 of capital expenditure commitments.