SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Gross to Net Sales Adjustments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Gross revenue	$ 4,901	$ 2,896
Contractual allowance and adjustments	(1,453)	(863)
Service revenue, net	3,448	2,033
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	4,788	2,565
Contractual allowance and adjustments	(1,453)	(863)
Service revenue, net	3,335	1,702
Service revenue, net [Member] | Medicaid [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	86	87
Contractual allowance and adjustments	(36)	(48)
Service revenue, net	50	39
Service revenue, net [Member] | Medicare [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	1,019	546
Contractual allowance and adjustments	(19)	23
Service revenue, net	1,000	569
Service revenue, net [Member] | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	138	131
Contractual allowance and adjustments		(28)
Service revenue, net	138	103
Service revenue, net [Member] | Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	2,358	1,310
Contractual allowance and adjustments	(1,398)	(810)
Service revenue, net	960	500
Service revenue, net [Member] | Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	1,187	491
Service revenue, net	1,187	491
Clinical Research Grants and Other [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	113	331
Service revenue, net	113	331
Clinical research grants [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	100	278
Other [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	$ 13	$ 53