Schedule of Incurred Expenses of Minority Shareholders (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Related Party Transactions [Abstract]
Stock-based compensation expense – Physician Inventors’ restricted stock awards	$ 273		$ 364
CWRU License Agreement - reimbursement of patent legal fees	113	27	113	59
EsoCheck devices provided to CWRU				15
Fees - Physician Inventors’ consulting agreements	1	15	14	53
Stock-based compensation expense – Physician Inventors’ stock options	52	6	58	12
Total Related Party Expenses	$ 439	$ 48	$ 549	$ 139