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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables) | 9 Months Ended
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Sep. 30, 2019
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract] |
Schedule of Net Revenues |
|  | For the Three Months Ended September 30,
(dollars in thousands) |  | Diagnostic Testing |  | Biomarker Testing |  | Total
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 10 |  | $ | 15 |  | $ | — |  | $ | — |  | $ | 10 |  | $ | 15
Medicare |  |  | 373 |  |  | 288 |  |  | — |  |  | — |  |  | 373 |  |  | 288
Self-pay |  |  | 5 |  |  | 48 |  |  | — |  |  | — |  |  | 5 |  |  | 48
Third party payers |  |  | 490 |  |  | 289 |  |  | — |  |  | — |  |  | 490 |  |  | 289
Contract diagnostics |  |  | — |  |  | — |  |  | 142 |  |  | 168 |  |  | 142 |  |  | 168
Service revenue, net |  | $ | 878 |  | $ | 640 |  | $ | 142 |  | $ | 168 |  | $ | 1,020 |  | $ | 808
|  | For the Nine Months Ended September 30,
(dollars in thousands) |  | Diagnostic Testing |  | Biomarker Testing |  | Total
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 22 |  | $ | 38 |  | $ | — |  | $ | — |  | $ | 22 |  | $ | 38
Medicare |  |  | 1,217 |  |  | 703 |  |  | — |  |  | — |  |  | 1,217 |  |  | 703
Self-pay |  |  | 20 |  |  | 94 |  |  | — |  |  | — |  |  | 20 |  |  | 94
Third party payers |  |  | 1,297 |  |  | 639 |  |  | — |  |  | — |  |  | 1,297 |  |  | 639
Contract diagnostics |  |  | — |  |  | — |  |  | 569 |  |  | 1,024 |  |  | 569 |  |  | 1,024
Service revenue, net |  | $ | 2,556 |  | $ | 1,474 |  | $ | 569 |  | $ | 1,024 |  | $ | 3,125 |  | $ | 2,498
Schedule of Gross to Net Sales Adjustments | The following table presents our revenues initially recognized for each associated payer class during the three and nine months ended September 30, 2019 and 2018.
|  | For the Three Months Ended September 30,
(dollars in thousands) |  |  |  | Contractual Allowances and |  | Revenues, net of Contractual
|  | Gross Revenues |  | adjustments |  | Allowances and adjustments
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 10 |  | $ | 30 |  | $ | — |  | $ | (15) |  | $ | 10 |  | $ | 15
Medicare |  |  | 373 |  |  | 293 |  |  | — |  |  | (5) |  |  | 373 |  |  | 288
Self-pay |  |  | 5 |  |  | 48 |  |  | — |  |  | — |  |  | 5 |  |  | 48
Third party payers |  |  | 1,701 |  |  | 713 |  |  | (1,211) |  |  | (424) |  |  | 490 |  |  | 289
Contract diagnostics |  |  | 142 |  |  | 168 |  |  | — |  |  | — |  |  | 142 |  |  | 168
|  |  | 2,231 |  |  | 1,252 |  |  | (1,211) |  |  | (444) |  |  | 1,020 |  |  | 808
Clinical research grants and other |  |  | 26 |  |  | 15 |  |  | — |  |  | — |  |  | 26 |  |  | 15
|  | $ | 2,257 |  | $ | 1,267 |  | $ | (1,211) |  | $ | (444) |  | $ | 1,046 |  | $ | 823
(dollars in thousands) |  | For the Nine Months Ended September 30,
|  |  |  | Contractual Allowances and |  | Revenues, net of Contractual
|  | Gross Revenues |  | adjustments |  | Allowances and adjustments
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 25 |  | $ | 71 |  | $ | (3) |  | $ | (33) |  | $ | 22 |  | $ | 38
Medicare |  |  | 1,234 |  |  | 722 |  |  | (17) |  |  | (19) |  |  | 1,217 |  |  | 703
Self-pay |  |  | 20 |  |  | 94 |  |  | — |  |  | — |  |  | 20 |  |  | 94
Third party payers |  |  | 4,289 |  |  | 1,561 |  |  | (2,992) |  |  | (922) |  |  | 1,297 |  |  | 639
Contract diagnostics |  |  | 569 |  |  | 1,024 |  |  | — |  |  | — |  |  | 569 |  |  | 1,024
|  |  | 6,137 |  |  | 3,472 |  |  | (3,012) |  |  | (974) |  |  | 3,125 |  |  | 2,498
Clinical research grants and other |  |  | 37 |  |  | 80 |  |  | — |  |  | — |  |  | 37 |  |  | 80
|  | $ | 6,174 |  | $ | 3,552 |  | $ | (3,012) |  | $ | (974) |  | $ | 3,162 |  | $ | 2,578
Schedule of Reported Revenues Net of Collection Allowance [Table Text Block] |
|  | For the Three Months Ended September 30,
|  | Revenues, net of |  |  |  |
(dollars in thousands) |  | Contractual Allowances |  | Allowances for doubtful |  |
|  | and adjustments |  | accounts |  | Total
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 10 |  | $ | 15 |  | $ | (10) |  | $ | (15) |  | $ | — |  | $ | —
Medicare |  |  | 373 |  |  | 288 |  |  | (56) |  |  | (43) |  |  | 317 |  |  | 245
Self-pay |  |  | 5 |  |  | 48 |  |  | — |  |  | — |  |  | 5 |  |  | 48
Third party payers |  |  | 490 |  |  | 289 |  |  | (196) |  |  | (115) |  |  | 294 |  |  | 174
Contract diagnostics |  |  | 142 |  |  | 168 |  |  | — |  |  | — |  |  | 142 |  |  | 168
|  |  | 1,020 |  |  | 808 |  |  | (262) |  |  | (173) |  |  | 758 |  |  | 635
Clinical research grants and other |  |  | 26 |  |  | 15 |  |  | — |  |  | — |  |  | 26 |  |  | 15
|  | $ | 1,046 |  | $ | 823 |  | $ | (262) |  | $ | (173) |  | $ | 784 |  | $ | 650
|  | For the Nine Months Ended September 30,
|  | Revenues, net of |  |  |  |
(dollars in thousands) |  | Contractual Allowances |  | Allowances for doubtful |  |
|  | and adjustments |  | accounts |  | Total
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Medicaid |  | $ | 22 |  | $ | 38 |  | $ | (22) |  | $ | (38) |  | $ | — |  | $ | —
Medicare |  |  | 1,217 |  |  | 703 |  |  | (183) |  |  | (105) |  |  | 1,034 |  |  | 598
Self-pay |  |  | 20 |  |  | 94 |  |  | — |  |  | — |  |  | 20 |  |  | 94
Third party payers |  |  | 1,297 |  |  | 639 |  |  | (518) |  |  | (256) |  |  | 779 |  |  | 383
Contract diagnostics |  |  | 569 |  |  | 1,024 |  |  | — |  |  | — |  |  | 569 |  |  | 1,024
|  |  | 3,125 |  |  | 2,498 |  |  | (723) |  |  | (399) |  |  | 2,402 |  |  | 2,099
Clinical research grants and other |  |  | 37 |  |  | 80 |  |  | — |  |  | — |  |  | 37 |  |  | 80
|  | $ | 3,162 |  | $ | 2,578 |  | $ | (723) |  | $ | (399) |  | $ | 2,439 |  | $ | 2,179
Schedule of Receivables |
(dollars in thousands) |  | September 30, 2019 |  | December 31, 2018
Medicaid |  | $ | 99 |  | $ | 82
Medicare |  |  | 764 |  |  | 633
Self-pay |  |  | 75 |  |  | 108
Third party payers |  |  | 2,071 |  |  | 1,382
Contract diagnostic services |  |  | 116 |  |  | 193
|  | $ | 3,125 |  | $ | 2,398
Less allowance for doubtful accounts |  |  | (2,432) |  |  | (1,708)
Accounts receivable, net |  | $ | 693 |  | $ | 690
Schedule of Allowance for Doubtful Accounts |
|  |  |  |  | Allowance for
|  |  |  |  | Doubtful
(dollars in thousands) |  |  |  |  | Accounts
Balance, January 1, 2019 |  |  |  |  | $ | (1,708)
Collection Allowance: |  |  |  |  |  |
Medicaid |  | $ | (22) |  |  |
Medicare |  |  | (183) |  |  |
Third party payers |  |  | (518) |  |  |
|  |  | (723) |  |  |
Bad debt expense |  | $ | (1) |  |  |
Total charges |  |  |  |  |  | (724)
Balance, September 30, 2019 |  |  |  |  | $ | (2,432)
Schedule of Customer Revenue and Accounts Receivable Concentrations | Customer revenue and accounts receivable concentration amounted to the following for the identified periods.
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2019 |  | 2018 |  |  | 2019 |  | 2018 |
Percentage of net sales by customer: |  |  |  |  |  |  |  |  |  |
Customer A |  | 18 | % | 17 | % |  | 23 | % | 36 | %
Customer B |  | 11 | % | * |  |  | * |  | * |
* represents less than 10% |  |  |  |  |  |  |  |  |  |
|  | September 30, |  |  | December 31, |
|  | 2019 |  |  | 2018 |
Percentage of total accounts receivable by customer: |  |  |  |  |  |
Customer A |  | 10 | % |  | 23 | %
Customer B |  | 11 | % |  | * |
* represents less than 10% |  |  |  |  |  |

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