SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	$ 3,478	$ 2,829
Allowance for credit losses	(46)	(12)
Net sales	3,432	2,817
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Allowance for credit losses	(2)
Medicare [Member]
Disaggregation of Revenue [Line Items]
Allowance for credit losses	(16)
Third-Party Payers [Member]
Disaggregation of Revenue [Line Items]
Allowance for credit losses	(26)
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	2,821	2,068
Allowance for credit losses	(46)	(12)
Net sales	2,775	2,056
Service revenue, net [Member] | Medicaid [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	5	8
Allowance for credit losses	(2)	(4)
Net sales	3	4
Service revenue, net [Member] | Medicare [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,091	880
Allowance for credit losses	(16)
Net sales	1,075	880
Service revenue, net [Member] | Self-Pay
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	18	80
Allowance for credit losses	(2)	(8)
Net sales	16	72
Service revenue, net [Member] | Third-Party Payers [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	1,705	1,100
Allowance for credit losses	(26)
Net sales	1,679	1,100
Service revenue, net [Member] | Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	2
Net sales	2
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue, net of contractual allowances and adjustments	657	761
Net sales	$ 657	$ 761