Accrued expenses and other current liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Accrued expenses and other current liabilities

Schedule of accrued expenses and other current liabilities

	December 31,
	2019		2018
Accrued employee compensation and benefits	$	2,514	$	1,610
Accrued external research and development expenses		2,055		3,814
Income taxes payable		1		15
Accrued professional fees		867		1,494
Current portion of operating lease liabilities		640		—
Other		67		99
	$	6,144	$	7,032