Property and equipment

6 Months Ended

Jun. 30, 2016

6. Property and equipment

Property and equipment, net consist of the following:


	Estimated			As of		As of
	useful life			June 30,		December 31,
	(in years)			2016		2015
Equipment	2	-	7	$	1,006,334	$	958,175
Computer hardware	3	-	5		3,405,534		3,266,233
Furniture and fixtures	5	-	7		202,859		192,565
Leasehold improvements	3	-	10		778,104		746,336
Total property and equipment					5,392,831		5,163,309
Less: Accumulated depreciation and amortization					(3,789,949)		(3,351,690)
Property and equipment, net				$	1,602,882	$	1,811,619

Property and equipment depreciation and amortization expense is as follows:


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Depreciation and amortization expense	$	277,433	$	153,243	$	440,559	$	324,472

Included in depreciation and amortization expense for the three and six months ended June 30, 2016 is $0.1 million of expense related to the acceleration of amortization on certain assets due to exiting a floor in the Company’s corporate location before the end of the lease term. The cease use date is September 30, 2016. For additional information on the Company’s restructuring charges disclosure, refer to Note 14.