SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	$ 9,820	$ 8,697
Adjustment for allowance for doubtful accounts	(408)	152
Net sales	9,412	8,849
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	50	43
Adjustment for allowance for doubtful accounts	(25)	(5)
Net sales	25	38
Medicare [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	3,831	3,838
Adjustment for allowance for doubtful accounts	(110)	(58)
Net sales	3,721	3,780
Self-Pay
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	326	234
Adjustment for allowance for doubtful accounts	(19)
Net sales	307	234
Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	4,211	3,612
Adjustment for allowance for doubtful accounts	(254)	215
Net sales	3,957	3,827
Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments		56
Net sales		56
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	8,418	7,783
Adjustment for allowance for doubtful accounts	(408)	152
Net sales	8,010	7,935
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,402	914
Net sales	$ 1,402	$ 914