Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2020

Payables And Accruals [Abstract]

Components of Accrued Expenses

Accrued expenses consist of the following:

	December 31,
	2020		2019
	(000's)
Compensation and benefits	$	976	$	1,759
Research and development expenses		212		249
Legal and professional fees		326		417
Use taxes		—		554
Other		57		143
Total accrued expenses	$	1,571	$	3,122