CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 23,343	$ 42,748
Short-term investments	68,005	46,221
Prepaid expenses	3,423	2,530
Other current assets	325	396
Total current assets	95,096	91,895
Restricted cash	216	216
Right-of-use assets, net	1,397	1,479
Long-term investments	17,601	32,459
Other assets	678	437
Total assets	114,988	126,486
Current liabilities:
Accounts payable	1,109	2,823
Term loan, current portion	405	0
Accrued expenses and other current liabilities	6,457	4,613
Accrued compensation and benefits	998	1,435
Total current liabilities	8,969	8,871
Term loan, net of current portion	4,485	4,878
Lease liability, net of current portion	1,196	1,293
Other liabilities	95	73
Total liabilities	14,745	15,115
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 10,000,000 shares authorized, no shares issued or outstanding as of March 31, 2022 and December 31, 2021	0
Common stock, $0.0001 par value, 200,000,000 shares authorized, 23,492,873 and 23,491,881 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	3	3
Additional paid-in capital	215,828	214,685
Accumulated other comprehensive loss	(693)	(184)
Accumulated deficit	(114,895)	(103,133)
Total stockholders’ equity	100,243	111,371
Total liabilities and stockholders’ equity	$ 114,988	$ 126,486