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Property and Equipment
 12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property and Equipment Property and Equipment
Property and equipment consisted of the following at December 31:
Range of
useful lives
20202019
Computer equipment
3 – 5 years
$1,275,703 $1,260,630 
Office equipment
3 – 15 years
806,906 878,350 
Furniture and fixtures
5 – 15 years
638,903 646,505 
Leasehold improvements
3 – 15 years, or remaining lease term
1,409,744 1,356,640 
Total property and
equipment, gross
4,131,256 4,142,125 
Less: accumulated depreciation
and amortization
(3,557,087)(3,394,329)
Total property and
equipment, net
$574,169 $747,796 
Depreciation expense, including amortization expense related to leasehold improvements, is included in general and administrative expense in the consolidated statements of operations. Depreciation expense was as follows for the years ended December 31:
202020192018
Depreciation expense$314,444 $269,619 $213,237