SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	$ 3,791	$ 3,873
Less allowance for doubtful accounts	(2,684)	(2,572)
Accounts receivable, net	1,107	1,301
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	20	25
Medicare [Member]
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	2,034	1,561
Self-Pay
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	196	229
Third-Party Payers [Member]
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	1,293	1,641
Contract Diagnostic Services and Other [Member]
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	$ 248	$ 417