Balance sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 49,229	$ 39,766
Prepaid expenses and other current assets	7,409	3,128
Total current assets	56,638	42,894
Property and equipment, net	855	1,531
Restricted cash	100	100
Deferred offering costs	332
Total assets	57,925	44,525
Current liabilities:
Accounts payable	3,077	1,187
Accrued expenses and other current liabilities	6,651	1,372
Current portion of long-term debt		366
Current portion of equipment loan payable		113
Total current liabilities	9,728	3,038
Long-term debt, net of current portion		134
Deferred rent	12	8
Total liabilities	9,740	3,180
Commitments and contingencies (Note 8)
Stockholders' equity (deficit):
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; no shares issued or outstanding at December 31, 2021 and December 31, 2020
Common stock, $0.0001 par value; 200,000,000 shares authorized; 12,110,373 shares issued and outstanding at December 31, 2021 and 10,634,245 shares issued and outstanding at December 31, 2020	1	1
Additional paid-in capital	127,289	95,738
Accumulated deficit	(79,105)	(54,394)
Total stockholders' equity (deficit)	48,185	41,345
Total liabilities, convertible preferred stock, and stockholders' equity (deficit)	$ 57,925	$ 44,525