Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS
Cash and cash equivalents	$ 133,665	$ 181,564
Accounts receivable, net	7,208	7,712
Inventories	6,794	5,512
Other current assets	6,253	7,473
Total current assets	153,920	202,261
Property and equipment, net	1,554	1,847
Operating lease right-of-use assets	2,381	3,842
Intangible assets, net	1,574	1,663
Other assets	5,749	3,170
TOTAL ASSETS	165,178	212,783
LIABILITIES
Accounts payable	11,291	13,552
Accrued liabilities	17,067	12,540
Operating lease liabilities, current portion	1,092	1,783
Total current liabilities	29,450	27,875
Accrued milestone and royalty payments	2,250	2,100
Operating lease liabilities, long-term portion	1,302	1,851
Other liabilities	780	851
TOTAL LIABILITIES	33,782	32,677
Commitments and contingencies (Note 9)
STOCKHOLDERS' EQUITY
Preferred stock, $0.0001 par value, 5,500,000 shares authorized and none issued at June 30, 2022 and December 31, 2021
Common stock, $0.0001 par value, 100,000,000 shares authorized at June 30, 2022 and December 31, 2021; 43,720,038 and 43,694,716 shares issued at June 30, 2022 and December 31, 2021, respectively	4	4
Additional paid in capital	537,962	519,206
Accumulated other comprehensive income	3,104	1,371
Accumulated deficit	(409,674)	(340,475)
TOTAL STOCKHOLDERS' EQUITY	131,396	180,106
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 165,178	$ 212,783