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Property and Equipment (Tables)
6 Months Ended
Jun. 30, 2019
Property Plant And Equipment [Abstract]  
Property and Equipment, Net

Property and equipment consists of the following (in thousands):

 

 

 

Estimated Useful

 

 

 

 

 

 

 

 

 

 

 

Life (Years)

 

 

June 30, 2019

 

 

December 31, 2018

 

Land

 

 

 

 

$

875

 

 

$

875

 

Buildings

 

39-40

 

 

 

17,389

 

 

 

17,389

 

Building improvements

 

5-40

 

 

 

34,967

 

 

 

34,967

 

Machinery and equipment

 

3-15

 

 

 

61,217

 

 

 

61,217

 

Furniture, fixtures and office equipment

 

5-10

 

 

 

2,954

 

 

 

2,954

 

Computer equipment and software

 

 

3

 

 

 

8,355

 

 

 

8,355

 

Construction in progress

 

 

 

 

 

2,625

 

 

 

342

 

Total property and equipment, gross

 

 

 

 

 

 

128,382

 

 

 

126,099

 

Less accumulated depreciation

 

 

 

 

 

 

(101,236

)

 

 

(100,497

)

Total property and equipment, net

 

 

 

 

 

$

27,146

 

 

$

25,602

 

Depreciation Expense Related to Property and Equipment

Depreciation expense related to property and equipment for the three and six months ended June 30, 2019 and 2018 was as follows (in thousands):

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

Depreciation Expense

 

$

371

 

 

$

445

 

 

$

739

 

 

$

886