Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepaid Expenses Deposits And Other Current Assets
Advanced payments to service providers and suppliers	$ 599	$ 808
Prepaid insurance	300	1,856
Deposits	3,005	1,989
EsoCheck cell collection supplies	59	434
EsoGuard mailer supplies	52	59
Veris Box supplies	150
CarpX devices		33
Total prepaid expenses, deposits and other current assets	$ 4,165	$ 5,179