Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 105,561	$ 143,513
Accounts receivable		3,000
Prepaid expenses and other current assets	4,491	4,122
Total current assets	110,052	150,635
Property and equipment, net	2,683	3,046
Restricted cash	2,305	2,305
Deferred offering costs	310	323
Operating lease right-of-use assets	64,961	69,843
Total assets	180,311	226,152
Current liabilities:
Accounts payable	1,656	3,971
Accrued expenses	9,711	6,810
Current portion of deferred revenue	6,630	12,507
Current portion of operating lease liabilities	10,446	9,936
Total current liabilities	28,443	33,224
Deferred revenue, net of current portion	9,196	9,196
Operating lease liabilities, net of current portion	54,484	59,756
Total liabilities	92,123	102,176
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized at June 30, 2022 and December 31, 2021; No shares issued or outstanding.
Common stock, $0.001 par value; 200,000,000 shares authorized at June 30, 2022 and December 31, 2021; 29,148,053 and 28,133,368 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively.	29	28
Additional paid-in capital	326,943	319,458
Accumulated deficit	(238,784)	(195,510)
Total stockholders’ equity	88,188	123,976
Total liabilities and stockholders’ equity	$ 180,311	$ 226,152