Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Property and Equipment Useful Life

Property and equipment is stated at historical cost less accumulated depreciation. Depreciation and amortization are computed using the straight-line method over the following estimated useful lives:

Laboratory equipment	4-8 years
Software, office and computer equipment	3 years
Leasehold improvements, furniture, fixtures and fittings	5-10 years

The principal categories of property and equipment, net at December 31, 2017 and 2016, respectively, are as follows:

Property and Equipment, net:	2017			2016
Laboratory equipment	$	10,135		$	9,019
Software, office and computer equipment	3,115			2,519
Furniture, fixtures and fittings	4,779			4,239
Less - accumulated depreciation	(15,028		)	(12,457		)
Total	$	3,001		$	3,320