Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 14,684	$ 87,975
Short-term investments	51,453	17,740
Accounts receivable, net	432	49
Tax receivable	88	352
Inventories, net	3,295	854
Prepaid expenses and other current assets	1,736	1,024
Total current assets	71,688	107,994
Operating lease right-of-use assets	3,928
Property and equipment, net	14,552	11,483
Long-term tax receivable	263	351
Other assets	925	705
Total Assets	91,356	120,533
Current Liabilities:
Accounts payable	1,720	2,070
Accrued liabilities	5,528	4,540
Long-term debt, current portion	4,630	8,611
Deferred revenue, current portion	411	315
Operating lease liabilities, current portion	970
Liability related to the sale of future royalties, current portion	352	392
Total current liabilities	13,611	15,928
Long-term debt, net of current portion	20,517	3,380
Deferred revenue, net of current portion	2,833	3,148
Operating lease liabilities, net of current portion	3,640
Liability related to the sale of future royalties, net of current portion	91,683	93,287
Other long-term liabilities	490	537
Total liabilities	132,774	116,280
Commitments and Contingencies
Stockholders’ (Deficit) Equity:
Common stock, $0.001 par value—200,000,000 shares authorized as of December 31, 2019 and 100,000,000 shares authorized as of December 31, 2018; 79,573,101 and 78,757,930 shares issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	79	78
Additional paid-in capital	356,609	349,194
Accumulated deficit	(398,106)	(345,019)
Total stockholders’ (deficit) equity	(41,418)	4,253
Total Liabilities and Stockholders’ (Deficit) Equity	$ 91,356	$ 120,533