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Balance Sheet Components

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

3. Balance Sheet Components

Prepaid expenses and other current assets (in thousands)

	June 30,		December 31,
	2019		2018
Preclinical and clinical ⁽¹⁾	$	745	$	416
Lease receivable		906		606
Unbilled receivable from CPRIT		2,000		—
Other		16		16
Total	$	3,667	$	1,038

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

Property and equipment, net (in thousands)

	June 30,			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		(2,120	)		(1,544	)
Property and equipment, net	$	1,996		$	32

Depreciation expense was approximately $0.1 million and $0.2 million for the three and six months ended June 30, 2019 and 2018, respectively. Additionally, as a result of the adoption of ASC 842, the Company recognized accumulated depreciation of approximately $0.5 million for its leasehold improvements associated with the 1020 Space as of January 1, 2019.

Accrued Liabilities (in thousands)

	June 30,		December 31,
	2019		2018
Payroll and related	$	800	$	509
Preclinical and clinical		600		563
Other		—		293
Total	$	1,400	$	1,365