Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 129,849,000	$ 148,989,000
Accounts receivable	2,708,000
Inventory	202,000
Prepaid expenses and other current assets	2,861,000	2,283,000
Total current assets	135,620,000	151,272,000
Property and equipment, net	101,000	57,000
Operating lease right-of-use asset	518,000	557,000
Intangible asset, net	3,743,000	3,811,000
Other assets	2,337,000	2,213,000
Total assets	142,319,000	157,910,000
Current liabilities:
Accounts payable	4,010,000	6,439,000
Accrued liabilities	7,337,000	8,703,000
Operating lease liabilities, current portion	163,000	131,000
Total current liabilities	11,510,000	15,273,000
Operating lease liabilities, net of current portion	424,000	474,000
Due to licensor (Note 6)	5,757,000	5,757,000
Total liabilities	17,691,000	21,504,000
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; no shares issued and outstanding as of March 31, 2022 and December 31, 2021
Common stock, $0.0001 par value; 300,000,000 shares authorized; 20,941,973 and 20,894,695 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	2,000	2,000
Additional paid-in capital	281,168,000	279,089,000
Accumulated deficit	(156,542,000)	(142,685,000)
Total stockholders’ equity	124,628,000	136,406,000
Total liabilities and stockholders’ equity	$ 142,319,000	$ 157,910,000