Summary of significant accounting policies (Tables)

9 Months Ended

Sep. 30, 2022

Summary of significant accounting policies

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

(in thousands)	September 30, 2022		September 30, 2021
Cash and cash equivalents	$	27,078	$	56,243
Restricted cash		100		100
	$	27,178	$	56,343

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 outstanding as of September 30, 2022 and 2021 have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive:

	September 30,
	2022	2021
Stock options(1)	2,509,759	1,936,546
Common stock warrants(1)	1,303,112	1,314,223
	3,812,871	3,250,769

(1) Represents common stock equivalents.