Property and equipment, net (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property and equipment, net

Depreciation is recorded, once assets are placed in service, using the straight-line method over the estimated useful lives of the respective assets, which are as follows:

Asset type	Estimated useful life
Computers and computer equipment	3 years
Laboratory equipment	3 years
Manufacturing equipment	3 years
Website development costs	1-2 years

Property and equipment, net consists of the following:

	December 31, 2018			December 31, 2017
Manufacturing equipment	$	421,999		$	421,999
Computers and computer equipment	275,670			311,847
Website development costs	177,886			177,886
Laboratory equipment	—			13,368
Capital in progress	—			28,823
Total property and equipment	875,555			953,923
Accumulated depreciation	(801,095		)	(622,883		)
Property and equipment, net	$	74,460		$	331,040