SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Net Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	$ 2,295	$ 2,139	$ 7,268	$ 6,494
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	2,060	1,998	6,291	5,980
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	12	4
Medicaid [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	12	4	39	35
Medicaid [Member] | Diagnostic Testing [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	12	4	39	35
Medicare [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	936	942
Medicare [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	936	942	2,986	2,935
Medicare [Member] | Diagnostic Testing [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	936	942	2,986	2,935
Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	109	65
Self-Pay [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	109	65	206	181
Self-Pay [Member] | Diagnostic Testing [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	109	65	206	181
Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,003	952
Third-Party Payor [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,003	952	3,060	2,773
Third-Party Payor [Member] | Diagnostic Testing [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,003	952	3,060	2,773
Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments		35
Contract Diagnostic Services [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments		35		56
Contract Diagnostic Services [Member] | Biomarker Testing and Clinical Project Services [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments		35		56
Services Revenue, Net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	2,060	1,998
Services Revenue, Net [Member] | Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments			6,291	5,980
Services Revenue, Net [Member] | Diagnostic Testing [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	$ 2,060	1,963	$ 6,291	5,924
Services Revenue, Net [Member] | Biomarker Testing and Clinical Project Services [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments		$ 35		$ 56