Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2019

Balance Sheet Related Disclosures [Abstract]

Prepaid Expenses and Other Current Assets

The following table summarizes the Company’s prepaid expenses and other current assets for each of the periods presented:

	December 31, 2019		December 31, 2018
	(in thousands)
Prepaid services	$	316	$	88
Deferred offering costs	65		114
Prepaid software and subscriptions	61		42
Prepaid insurance	49		45
Other	6		69
Total	$	497	$	358

Schedule of Property and Equipment

The following table summarizes the Company’s property and equipment for each of the periods presented:

	December 31, 2019			December 31, 2018
	(in thousands)
Leasehold improvements	$	16,932		$	16,690
Manufacturing equipment	12,173			10,387
Laboratory and office equipment	1,610			1,434
Computer equipment and software	167			206
Construction-in-progress	20,602			9,558
	51,484			38,275
Less: accumulated depreciation	(26,848		)	(26,359		)
Total	$	24,636		$	11,916

Schedule of Accrued Liabilities

The following table summarizes the Company’s other accrued liabilities for each of the periods presented:

	December 31, 2019		December 31, 2018
	(in thousands)
Construction-in-progress obligations	$	3,422	$	395
Contract manufacturing	250		834
Professional service fees	206		112
Pre-clinical and clinical studies	43		483
Accrued taxes	27		187
Other	206		403
Total	$	4,154	$	2,414