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NET SALES SERVICE REVENUE AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments $ 959 $ 316 $ 1,755 $ 619
Allowances for dubtful accounts (142) (56) (226) (111)
Total 817 260 1,529 508
Medicaid [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 11 8 23 20
Allowances for dubtful accounts (12) (2) (23) (4)
Total (1) 6   16
Medicare [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 281 131 415 289
Allowances for dubtful accounts (42) (23) (62) (53)
Total 239 108 353 236
Self-Pay [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 20 34 46 54
Allowances for dubtful accounts   (6)   (10)
Total 20 28 46 44
Third-Party Payor [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 219 143 350 256
Allowances for dubtful accounts (88) (25) (141) (44)
Total 131 118 209 212
Contract Diagnostic Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 368   856  
Total 368   856  
Services Revenue, Net [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 899 316 1,690 619
Allowances for dubtful accounts (142) (56) (226) (111)
Total 757 $ 260 1,464 $ 508
Clinical Research Grants and Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, net of contractual allowances and adjustments 60   65  
Total $ 60   $ 65