Balance Sheet Components

6 Months Ended

Jun. 30, 2018

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

4. Balance Sheet Components

Property and Equipment, net

Property and equipment, net, consists of the following:

	June 30, 2018			December 31, 2017
	(in thousands)
Computer hardware and software	$	1,476		$	1,090
Furniture and equipment		936			1,029
Leasehold improvements		3,599			2,967
		6,011			5,086
Less: Accumulated depreciation		(1,566	)		(1,073	)
	$	4,445		$	4,013

Depreciation expense for the three months ended June 30, 2018 and 2017 was $0.2 million and $0.1 million, respectively.  Depreciation expense for the six months ended June 30, 2018 and 2017 was $0.5 million and $0.3 million, respectively.

The useful life for computer hardware and software is 3 years, furniture and equipment is 5 years and leasehold improvements is the lesser of the useful life or the term of the respective lease.

Accrued Expenses

Accrued expenses consist of the following:

	June 30, 2018		December 31, 2017
	(in thousands)
Development costs	$	23,679	$	23,473
Employee-related expenses		9,250		15,838
Professional services		6,195		3,166
Other accrued expenses		457		124
	$	39,581	$	42,601