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PROPERTY, PLANT, AND EQUIPMENT
12 Months Ended
Dec. 31, 2018
PROPERTY, PLANT, AND EQUIPMENT  
PROPERTY, PLANT, AND EQUIPMENT

5.    PROPERTY, PLANT, AND EQUIPMENT

 

Property, plant, and equipment consist of the following:

 

 

 

 

 

 

 

 

 

 

December 31,

 

    

2018

    

2017

 

 

 

 

 

 

 

Land

 

$

261,893

 

$

261,893

Buildings and building improvements

 

 

11,566,115

 

 

11,566,115

Production equipment

 

 

19,948,303

 

 

19,742,577

Office furniture and equipment

 

 

3,540,846

 

 

3,500,834

Construction in progress

 

 

202,109

 

 

65,693

 

 

 

35,519,266

 

 

35,137,112

Accumulated depreciation

 

 

(24,667,519)

 

 

(23,783,910)

 

 

$

10,851,747

 

$

11,353,202

 

Depreciation expense for the years ended December 31, 2018, 2017, and 2016 was $883,610; $830,715; and $867,080, respectively.