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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2015
Property Plant And Equipment [Abstract]  
Schedule of Property, Plant and Equipment

Property, plant and equipment consisted of the following at December 31, 2015 and 2014:

 

Category

 

 

Estimated
Useful Lives
(years)

 

 

 

2015

 

 

 

2014

 

 

 

 

 

 

 

(in thousands)

 

Buildings and improvements

 

 

15 – 25

 

 

$

8,083

 

 

$

8,117

 

Office equipment and furniture

 

 

2 – 7

 

 

 

2,126

 

 

 

2,583

 

Automobiles and trucks

 

 

2 – 5

 

 

 

118

 

 

 

265

 

Machinery and shop equipment

 

 

2 – 10

 

 

 

2,963

 

 

 

3,349

 

Construction in progress

 

 

 

 

 

 

94

 

 

 

428

 

 

 

 

 

 

 

 

13,384

 

 

 

14,742

 

Less: accumulated depreciation and amortization

 

 

 

 

 

 

5,603

 

 

 

6,503

 

 

 

 

 

 

 

 

7,781

 

 

 

8,239

 

Land

 

 

 

 

 

 

134

 

 

 

134

 

 

 

 

 

 

 

$

7,915

 

 

$

8,373