Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 16,353	$ 49,702
Short-term investments	24,685	0
Prepaid expenses and other current assets	1,245	3,194
Total current assets	42,283	52,896
Property and equipment, net	242	91
Operating lease right-of-use assets	139	166
Other assets	807	903
Total assets	43,471	54,056
Current liabilities:
Accounts payable	1,204	516
Accrued expenses	2,322	3,418
Current term loans, net	18,911	0
Accrued final payment on term loans, current	1,100	0
Lease liabilities, current portion	48	44
Total current liabilities	23,585	3,978
Earn-out liability	89	12,130
Non-current term loans, net		18,760
Accrued final payment on term loans, non-current		1,100
Non-current warrant liability	80	678
Non-current lease liabilities	94	126
Total liabilities	23,848	36,772
Commitments and contingencies
Stockholders' deficit:
Preferred stock, $0.0001 par value; 100,000,000 and zero shares authorized at June 30, 2022 and December 31, 2021 respectively; zero shares issued and outstanding as of June 30, 2022 and December 31, 2021	0	0
Common stock, $0.0001 par value; 1,000,000,000 shares authorized at June 30, 2022 and December 31, 2021; 41,452,790 shares issued and 41,152,790 shares issued and outstanding as of June 30, 2022; 40,689,975 shares issued and 40,389,975 shares issued and outstanding as of December 31, 2021	4	4
Additional paid-in capital	144,448	138,181
Accumulated other comprehensive loss	(82)	0
Accumulated deficit	(124,747)	(120,901)
Total stockholders' deficit	19,623	17,284
Total liabilities and stockholders' equity	$ 43,471	$ 54,056