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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Gross to Net Sales Adjustments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Gross revenue	$ 1,578	$ 988
Contractual allowance and adjustments	(661)	(192)
Service revenue, net	917	796
Medicaid [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	3	12
Medicare [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	394	134
Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	4	26
Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	356	131
Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	153	488
Clinical Research Grants and Other [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	7	5
Service revenue, net [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	1,571	983
Contractual allowance and adjustments	(661)	(192)
Service revenue, net	910	791
Service revenue, net [Member] | Medicaid [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	3	15
Contractual allowance and adjustments		(3)
Service revenue, net	3	12
Service revenue, net [Member] | Medicare [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	394	137
Contractual allowance and adjustments		(3)
Service revenue, net	394	134
Service revenue, net [Member] | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	4	26
Service revenue, net	4	26
Service revenue, net [Member] | Third-Party Payor [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	1,017	317
Contractual allowance and adjustments	(661)	(186)
Service revenue, net	356	131
Service revenue, net [Member] | Contract Diagnostic Services [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	153	488
Service revenue, net	153	488
Service revenue, net [Member] | Clinical Research Grants and Other [Member]
Disaggregation of Revenue [Line Items]
Gross revenue	7	5
Service revenue, net	7	5
Other [Member]
Disaggregation of Revenue [Line Items]
Service revenue, net	$ 7	$ 5

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
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