SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Receivables) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	$ 3,873	$ 3,390
Less allowance for doubtful accounts	(2,572)	(2,354)
Accounts receivable, net	1,301	1,036
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	25	34
Medicare [Member]
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	1,561	1,124
Self-Pay
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	229	291
Third-Party Payers [Member]
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	1,641	1,888
Contract Diagnostic Services and Other [Member]
Disaggregation of Revenue [Line Items]
Accounts Receivable, Gross	$ 417	$ 53