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Property and Equipment
 12 Months Ended
Dec. 31, 2021
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
20212020
Computer equipment
3 – 5 years
$1,352,734 $1,275,703 
Office equipment
3 – 15 years
820,712 806,906 
Furniture and fixtures
5 – 15 years
638,903 638,903 
Leasehold improvements
3 – 15 years, or remaining lease term
1,422,439 1,409,744 
Total property and
equipment, gross
4,234,788 4,131,256 
Less: accumulated depreciation
and amortization
(3,792,153)(3,557,087)
Total property and
equipment, net
$442,635 $574,169 
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:
202120202019
Depreciation expense$235,066 $314,444 $269,619