Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2021

Summary of significant accounting policies

Schedule of useful lives of property and equipment

Asset category	Estimates useful life
Lab equipment	5 years
Leasehold improvements	Lesser of lease term or 5 years
Computer equipment	3 years
Office equipment	5 years
Furniture and fixtures	5 years

Schedule of reconciliation of the components of cash and restricted cash reported in balance sheet

(in thousands)	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	49,229	$	39,766
Restricted cash		100		100
	$	49,329	$	39,866

Schedule of potentially dilutive securities have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive

The following potentially dilutive securities as of December 31, 2021 and 2020 have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive:

	Year ended December 31,
	2021	2020
Stock options(1)	2,005,756	1,472,840
Common stock warrants(1)	1,303,112	1,035,196
	3,308,868	2,508,036