Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 8,305	$ 2,416
Marketable securities, available for-sale	82,575	25,718
Prepaid expenses and other current assets	1,266	356
Deferred offering costs	0	1,398
Total current assets	92,146	29,888
Property, plant and equipment-net	707	444
Other Assets	26	0
Total assets	92,879	30,332
Current liabilities:
Accounts payable	12,908	8,606
Accrued liabilities	3,703	1,939
Other current liabilities	0	489
Total current liabilities	16,611	11,034
Other liabilities	0	276
Total liabilities	16,611	11,310
Commitments and Contingencies
Convertible preferred stock, $0.01 par value; no shares authorized, issued or outstanding as of December 31, 2021; 11,260,608 shares authorized, issued and outstanding as of December 31, 2020; aggregate liquidation preference of $70,254 as of December 31, 2020	0	73,037
Stockholders' (deficit) equity:
Common stock, $0.01 par value; 200,000,000 shares authorized, 40,254,890 and 12,767,909 shares issued and outstanding as of December 31, 2021 and 2020, respectively	403	71
Additional paid-in-capital	170,241	1,633
Accumulated other comprehensive income	(225)	10
Accumulated deficit	(94,151)	(55,729)
Total stockholders' equity (deficit)	76,268	(54,015)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	$ 92,879	$ 30,332