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PROPERTY, PLANT, AND EQUIPMENT
12 Months Ended
Dec. 31, 2017
PROPERTY, PLANT, AND EQUIPMENT  
PROPERTY, PLANT, AND EQUIPMENT

 

4.       PROPERTY, PLANT, AND EQUIPMENT

 

Property, plant, and equipment consist of the following:

 

 

 

December 31,

 

 

 

2017

 

2016

 

 

 

 

 

 

 

Land

 

$

261,893

 

$

261,893

 

Buildings and building improvements

 

11,566,115

 

11,561,320

 

Production equipment

 

19,742,577

 

17,864,346

 

Office furniture and equipment

 

3,500,834

 

3,415,985

 

Construction in progress

 

65,693

 

1,941,687

 

 

 

 

 

 

 

 

 

35,137,112

 

35,045,231

 

Accumulated depreciation

 

(23,783,910

)

(22,953,194

)

 

 

 

 

 

 

 

 

$

11,353,202

 

$

12,092,037

 

 

 

 

 

 

 

 

 

 

Depreciation expense for the years ended December 31, 2017, 2016, and 2015 was $830,715; $867,080; and $849,804, respectively.