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Property and Equipment
9 Months Ended
Sep. 30, 2015
Property, Plant and Equipment [Abstract]  
Property and Equipment

4. Property and Equipment

 

Property and equipment, net consists of the following:

 

 

 

 

 

 

 

 

 

 

 

September 30, 

 

December 31, 

 

 

    

2015

    

2014

 

Furniture and fixtures

 

$

230,987

 

$

122,653

 

Laboratory equipment

 

 

965,586

 

 

992,232

 

Office equipment

 

 

8,358

 

 

10,467

 

Computer equipment

 

 

179,192

 

 

190,554

 

Leasehold improvements

 

 

36,128

 

 

41,843

 

Property and equipment

 

 

1,420,251

 

 

1,357,749

 

Less accumulated depreciation

 

 

(853,032)

 

 

(905,479)

 

Property and equipment, net

 

$

567,219

 

$

452,270

 

 

Depreciation expense was $51,882 and $40,789 for the three months ended September 30, 2015 and 2014, respectively, and $142,417 and $114,261 for the nine months ended September 30, 2015 and 2014, respectively.