Accrued Expenses (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2020

Dec. 31, 2019

Payables and Accruals [Abstract]

Components of Accrued Expenses

Accrued expenses consist of the following (in thousands):

	June 30, 2020		December 31, 2019
Compensation and benefits	$	455	$	1,759
Research and development expenses		223		249
Legal and professional fees		957		417
Sales taxes		—		554
Other		939		143
Total accrued expenses	$	2,574	$	3,122

Accrued expenses as of December 31, 2019 and 2019 consisted of the following (in thousands):

	2019		2018
Accrued employee compensation and benefits	$	1,759	$	1,196
Accrued external research and development expenses		249		401
Accrued legal fees		417		279
Accrued interest expense		87		91
Accrued federal and state taxes		1		44
Accrued sales taxes		554		475
Other accrued expenses		55		171
Total accrued expenses	$	3,122	$	2,657