CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 9,899	$ 7,159
Marketable securities	113,815	140,462
Prepaid expenses	3,484	547
Other current assets	293	374
Total current assets	127,491	148,542
Right of use assets - operating leases, net	5,971
Right of use assets - financing leases, net	2,417
Property and equipment, net	2,112	4,644
Other non-current assets	45	39
Total assets	138,036	153,225
Current liabilities:
Accounts payable and accrued liabilities	2,423	2,456
Compensation and employee benefits liabilities	1,019	1,753
Operating lease liabilities, current	1,194
Financing lease liabilities, current	798	680
Total current liabilities	5,434	4,889
Operating lease liabilities, non-current	4,967
Financing lease liabilities, non-current	1,719	1,674
Other non-current liabilities		149
Total liabilities	12,120	6,712
Commitments and contingencies (Note 7)
Stockholders' equity:
Common stock, $0.0001 par value and 250,000,000 shares authorized as of June 30, 2022 and December 31, 2021; 30,720,921 and 30,609,029 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	3	3
Additional paid-in capital	299,271	296,049
Accumulated deficit	(172,146)	(149,206)
Accumulated other comprehensive loss	(1,212)	(333)
Total stockholders' equity	125,916	146,513
Total liabilities and stockholders' equity	$ 138,036	$ 153,225