Prepaid Expenses, Deposits and Other Current Assets - Schedule of Prepaid Expenses and Other Current and Non-Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Advanced payments to service providers and suppliers	$ 568	$ 294
Deposits	262	34
Total prepaid expenses, deposits and other current assets	1,685	328
EsoCheck Cell Collection [Member]
Supplies	779
EsoGuard Mailer [Member]
Supplies	55
CarpX Devices [Member]
Supplies	$ 21