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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Gross to Net Sales Adjustments) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |
Gross revenue | $ 8,175 | $ 4,901
Contractual allowance and adjustments | (4,080) | (1,453)
Service revenue, net | 4,095 | 3,448
Medicaid [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 31 | 86
Contractual allowance and adjustments | (3) | (36)
Service revenue, net | 28 | 50
Medicare [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 1,686 | 1,019
Contractual allowance and adjustments | (17) | (19)
Service revenue, net | 1,669 | 1,000
Self-Pay [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 34 | 138
Service revenue, net | 34 | 138
Third Party Payer [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 5,785 | 2,358
Contractual allowance and adjustments | (4,060) | (1,398)
Service revenue, net | 1,725 | 960
Contract Diagnostic Services [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 595 | 1,187
Service revenue, net | 595 | 1,187
Service revenue, net [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 8,131 | 4,788
Contractual allowance and adjustments | (4,080) | (1,453)
Service revenue, net | 4,051 | 3,335
Clinical Research Grants and Other [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Gross revenue | 44 | 113
Service revenue, net | $ 44 | $ 113

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