Fixed Assets

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Fixed assets at December 31, 2021 and 2020 consisted of the following:


	Cost		Accumulated Depreciation and Amortization		Net Book Value
As of December 31, 2021
Leasehold improvements	$	15,803,108	$	(8,258,608)	$	7,544,500

Laboratory equipment	12,392,916		(4,279,816)		8,113,100
Office furniture and fixtures	2,827,476		(2,599,643)		227,833
Computer equipment and other	5,374,084		(3,806,311)		1,567,773
	$	36,397,584	$	(18,944,378)	$	17,453,206
As of December 31, 2020
Leasehold improvements	$	15,179,447	$	(6,549,418)	$	8,630,029
Laboratory equipment	4,788,678		(3,727,508)		1,061,170
Office furniture and fixtures	2,828,675		(2,296,942)		531,733
Computer equipment and other	4,544,915		(3,419,703)		1,125,212
	$	27,341,715	$	(15,993,571)	$	11,348,144

Depreciation expense for the years ended December 31, 2021, 2020 and 2019 was $3.0 million, $3.0 million and $3.6 million, respectively. The Company determined that the carrying value of these long-lived assets was not impaired during the periods presented. During the year ended December 31, 2021 the Company disposed of fixed assets with a net book value of $89,000 and accumulated depreciation of $89,000.