Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets (in thousands)

	March 31,		December 31,
	2019		2018
Preclinical and clinical (1)	$	908	$	416
Lease receivable		969		606
Other		14		16
Total	$	1,891	$	1,038

(1) These prepayments consist primarily of advances to the Company’s contract manufacturers and contract research organizations

Property and Equipment, Net

Property and equipment, net (in thousands)

	March 31,			December 31,
	2019			2018
Equipment and furniture	$	1,442		$	1,442
Buildings, leasehold and building improvements		2,674			134
		4,116			1,576
Less: Accumulated depreciation and amortization		(2,065	)		(1,544	)
Property and equipment, net	$	2,051		$	32

Build-to-Suit Lease Asset, Net

Build-to-suit lease asset, net (in thousands)

	March 31,		December 31,
	2019		2018
Build-to-suit lease asset	$	—	$	8,986
		—		8,986
Less: Accumulated depreciation and amortization		—		(335	)
Build-to-suit lease asset, net	$	—	$	8,651

Accrued Liabilities

Accrued Liabilities (in thousands)

	March 31,		December 31,
	2019		2018
Payroll and related	$	646	$	509
Preclinical and clinical		1,582		563
Other		203		293
Total	$	2,431	$	1,365