Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 25,436	$ 35,724
Marketable debt securities	62,155	55,505
Prepaid expenses and other current assets	3,098	1,883
Total current assets	90,689	93,112
Restricted cash, non-current	745	745
Marketable debt securities, non-current	30,889	39,467
Property and equipment, net	1,676	1,719
Operating lease right-of-use asset	6,953	7,171
Goodwill	29,517	29,517
Other assets	787	865
Total assets	161,256	172,596
Current liabilities:
Accounts payable	541	954
Accrued expenses	1,450	2,489
Operating lease liability	870	855
Total current liabilities	2,861	4,298
Operating lease liability, non-current	6,160	6,384
Total liabilities	9,021	10,682
Commitments and contingencies (Note 8)
Preferred stock, $0.001 par value, authorized 10,000,000 shares: Series 1 Convertible Preferred Stock, 8,028 shares authorized at March 31, 2022 and December 31, 2021, 8,027 shares issued and outstanding as of March 31, 2022 and December 31, 2021.
Common stock, $0.001 par value, authorized 100,000,000 shares: Common stock, 11,251,927 and 11,235,731 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively.	11	11
Additional paid-in capital	257,933	256,126
Accumulated deficit	(104,767)	(94,012)
Accumulated other comprehensive income (loss)	(942)	(211)
Total stockholders’ equity	152,235	161,914
Total liabilities and stockholders’ equity	$ 161,256	$ 172,596