SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	$ 3,448	$ 2,033
less allowance for doubtful accounts	(584)	(310)
Net sales	2,864	1,723
Medicaid [Member]
Disaggregation of Revenue [Line Items]
less allowance for doubtful accounts	(50)
Medicare [Member]
Disaggregation of Revenue [Line Items]
less allowance for doubtful accounts	(150)
Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
less allowance for doubtful accounts	(384)
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	3,335	1,702
less allowance for doubtful accounts	(584)	(315)
Net sales	2,751	1,387
Service revenue, net [Member] | Medicaid [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	50	39
less allowance for doubtful accounts	(50)	(17)
Net sales		22
Service revenue, net [Member] | Medicare [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	1,000	569
less allowance for doubtful accounts	(150)	(182)
Net sales	850	387
Service revenue, net [Member] | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	138	103
less allowance for doubtful accounts		(31)
Net sales	138	72
Service revenue, net [Member] | Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	960	500
less allowance for doubtful accounts	(384)	(85)
Net sales	576	415
Service revenue, net [Member] | Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	1,187	491
Net sales	1,187	491
Clinical Research Grants and Other [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	113	331
less allowance for doubtful accounts		5
Net sales	113	336
Clinical research grants [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	100	278
Other [Member]
Disaggregation of Revenue [Line Items]
Revenues, net of contractual allowances and adjustments	$ 13	$ 53