SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	$ 5,280	$ 4,569	$ 13,265	$ 11,043
Allowance for credit losses	(71)	(51)	(183)	(175)
Net sales	5,209	4,518	13,082	10,868
Medicaid
Disaggregation of Revenue [Line Items]
Allowance for credit losses			(12)
Medicare
Disaggregation of Revenue [Line Items]
Allowance for credit losses			(66)
Self-pay
Disaggregation of Revenue [Line Items]
Allowance for credit losses			(3)
Third party payers
Disaggregation of Revenue [Line Items]
Allowance for credit losses			(102)
Service revenue, net
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	4,599	3,738	11,329	8,574
Allowance for credit losses	(71)	(51)	(183)	(175)
Net sales	4,528	3,687	11,146	8,399
Service revenue, net | Medicaid
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	8	10	33	22
Allowance for credit losses	(3)	(4)	(12)	(10)
Net sales	5	6	21	12
Service revenue, net | Medicare
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,819	1,691	4,435	3,736
Allowance for credit losses	(27)	(20)	(66)	(43)
Net sales	1,792	1,671	4,369	3,693
Service revenue, net | Self-pay
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1	39	33	155
Allowance for credit losses		(3)	(3)	(15)
Net sales	1	36	30	140
Service revenue, net | Third party payers
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	2,743	1,998	6,796	4,661
Allowance for credit losses	(41)	(24)	(102)	(107)
Net sales	2,702	1,974	6,694	4,554
Service revenue, net | Contract diagnostics and other
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	28		32
Net sales	28		32
Product
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	681	831	1,936	2,469
Net sales	$ 681	$ 831	$ 1,936	$ 2,469