Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Schedule of accrued expenses

Accrued expenses consist of the following:

	Year ended December 31,
	2021		2020
Employee compensation and benefits	$	452	$	620
Leased facilities	71		188
Professional services	264		235
Field trials and related expenses	97		52
Other	252		202
Total accrued expenses	$	1,136	$	1,297