SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	$ 1,933	$ 1,794
Less allowance for credit losses	(957)	(995)	$ (2,655)	$ (2,572)
Accounts receivable, net	976	799
Medicaid
Disaggregation of Revenue [Line Items]
Accounts receivables, gross of allowance for credit losses	5	(12)
Medicare
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	1,291	1,086
Self-pay
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	15	13
Third party payers
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	534	530
Contract diagnostic services, product and other
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	$ 88	$ 177