Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets (in thousands)

	June 30,		December 31,
	2020		2019
Preclinical and clinical prepaid expenses	$	476	$	531
Lease receivable		—		900
Unbilled receivable from CPRIT		—		1,604
Other		730		44
Total	$	1,206	$	3,079

Property and Equipment, Net

Property and equipment, net (in thousands)

	June 30,			December 31,
	2020			2019
Equipment and furniture	$	1,442		$	1,442
Buildings, leasehold and building improvements		2,674			2,674
		4,116			4,116
Less: Accumulated depreciation and amortization		(2,469	)		(2,308	)
Impairment loss		(498	)		—
Property and equipment, net	$	1,149		$	1,808

Accrued Liabilities

Accrued Liabilities (in thousands)

	June 30,		December 31,
	2020		2019
Payroll and related	$	941	$	1,248
Preclinical and clinical		225		5
Professional services		181		32
Other		28		212
Total	$	1,375	$	1,497