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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables) | 6 Months Ended
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Jun. 30, 2022
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract] |
Schedule of Net Revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended June 30,
(dollars in thousands) | ​ | Diagnostic Testing | ​ | Biomarker Testing | ​ | Total
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 12 | ​ | $ | 18 | ​ | $ | — | ​ | $ | — | ​ | $ | 12 | ​ | $ | 18
Medicare | ​ |  | 1,076 | ​ |  | 1,009 | ​ |  | — | ​ |  | — | ​ |  | 1,076 | ​ |  | 1,009
Self-pay | ​ |  | 48 | ​ |  | 69 | ​ |  | — | ​ |  | — | ​ |  | 48 | ​ |  | 69
Third party payers | ​ |  | 1,090 | ​ |  | 921 | ​ |  | — | ​ |  | — | ​ |  | 1,090 | ​ |  | 921
Contract diagnostics | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21 | ​ |  | — | ​ |  | 21
Service revenue, net | ​ | $ | 2,226 | ​ | $ | 2,017 | ​ | $ | — | ​ | $ | 21 | ​ | $ | 2,226 | ​ | $ | 2,038
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Six Months Ended June 30,
(dollars in thousands) | ​ | Diagnostic Testing | ​ | Biomarker Testing | ​ | Total
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 27 | ​ | $ | 31 | ​ | $ | — | ​ | $ | — | ​ | $ | 27 | ​ | $ | 31
Medicare | ​ |  | 2,050 | ​ |  | 1,993 | ​ |  | — | ​ |  | — | ​ |  | 2,050 | ​ |  | 1,993
Self-pay | ​ |  | 97 | ​ |  | 116 | ​ |  | — | ​ |  | — | ​ |  | 97 | ​ |  | 116
Third party payers | ​ |  | 2,057 | ​ |  | 1,821 | ​ |  | — | ​ |  | — | ​ |  | 2,057 | ​ |  | 1,821
Contract diagnostics | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21 | ​ |  | — | ​ |  | 21
Service revenue, net | ​ | $ | 4,231 | ​ | $ | 3,961 | ​ | $ | — | ​ | $ | 21 | ​ | $ | 4,231 | ​ | $ | 3,982
​
Schedule of Gross to Net Sales Adjustments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended June 30,
(dollars in thousands) | ​ | ​ | ​ | Contractual Allowances and | ​ | Revenues, net of Contractual
​ | ​ | Gross Revenues | ​ | adjustments | ​ | Allowances and adjustments
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 12 | ​ | $ | 18 | ​ | $ | — | ​ | $ | — | ​ | $ | 12 | ​ | $ | 18
Medicare | ​ |  | 1,076 | ​ |  | 1,009 | ​ |  | — | ​ |  | — | ​ |  | 1,076 | ​ |  | 1,009
Self-pay | ​ |  | 48 | ​ |  | 69 | ​ |  | — | ​ |  | — | ​ |  | 48 | ​ |  | 69
Third party payers | ​ |  | 3,793 | ​ |  | 3,225 | ​ |  | (2,703) | ​ |  | (2,304) | ​ |  | 1,090 | ​ |  | 921
Contract diagnostics | ​ |  | — | ​ |  | 21 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21
​ | ​ |  | 4,929 | ​ |  | 4,342 | ​ |  | (2,703) | ​ |  | (2,304) | ​ |  | 2,226 | ​ |  | 2,038
Other | ​ |  | 220 | ​ |  | 206 | ​ |  | — | ​ |  | — | ​ |  | 220 | ​ |  | 206
​ | ​ | $ | 5,149 | ​ | $ | 4,548 | ​ | $ | (2,703) | ​ | $ | (2,304) | ​ | $ | 2,446 | ​ | $ | 2,244
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Six Months Ended June 30,
(dollars in thousands) | ​ | ​ | ​ | Contractual Allowances and | ​ | Revenues, net of Contractual
​ | ​ | Gross Revenues | ​ | adjustments | ​ | Allowances and adjustments
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 27 | ​ | $ | 31 | ​ | $ | — | ​ | $ | — | ​ | $ | 27 | ​ | $ | 31
Medicare | ​ |  | 2,050 | ​ |  | 1,993 | ​ |  | — | ​ |  | — | ​ |  | 2,050 | ​ |  | 1,993
Self-pay | ​ |  | 97 | ​ |  | 116 | ​ |  | — | ​ |  | — | ​ |  | 97 | ​ |  | 116
Third party payers | ​ |  | 7,178 | ​ |  | 6,357 | ​ |  | (5,121) | ​ |  | (4,536) | ​ |  | 2,057 | ​ |  | 1,821
Contract diagnostics | ​ |  | – | ​ |  | 21 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21
​ | ​ |  | 9,352 | ​ |  | 8,518 | ​ |  | (5,121) | ​ |  | (4,536) | ​ |  | 4,231 | ​ |  | 3,982
Other | ​ |  | 742 | ​ |  | 373 | ​ |  | — | ​ |  | — | ​ |  | 742 | ​ |  | 373
​ | ​ | $ | 10,094 | ​ | $ | 8,891 | ​ | $ | (5,121) | ​ | $ | (4,536) | ​ | $ | 4,973 | ​ | $ | 4,355
Schedule of Reported Revenues Net of Collection Allowance | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended June 30,
​ | ​ | Revenues, net of | ​ | ​ | ​ |
(dollars in thousands) | ​ | Contractual Allowances | ​ | Allowances for doubtful | ​ |
​ | ​ | and adjustments | ​ | accounts | ​ | Total
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 12 | ​ | $ | 18 | ​ | $ | (6) | ​ | $ | 10 | ​ | $ | 6 | ​ | $ | 28
Medicare | ​ |  | 1,076 | ​ |  | 1,009 | ​ |  | (27) | ​ |  | 110 | ​ |  | 1,049 | ​ |  | 1,119
Self-pay | ​ |  | 48 | ​ |  | 69 | ​ |  | — | ​ |  | — | ​ |  | 48 | ​ |  | 69
Third party payers | ​ |  | 1,090 | ​ |  | 921 | ​ |  | (54) | ​ |  | (20) | ​ |  | 1,036 | ​ |  | 901
Contract diagnostics | ​ |  | — | ​ |  | 21 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21
​ | ​ |  | 2,226 | ​ |  | 2,038 | ​ |  | (87) | ​ |  | 100 | ​ |  | 2,139 | ​ |  | 2,138
Other | ​ |  | 220 | ​ |  | 206 | ​ |  | — | ​ |  | — | ​ |  | 220 | ​ |  | 206
​ | ​ | $ | 2,446 | ​ | $ | 2,244 | ​ | $ | (87) | ​ | $ | 100 | ​ | $ | 2,359 | ​ | $ | 2,344
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Six Months Ended June 30,
​ | ​ | Revenues, net of | ​ | ​ | ​ |
(dollars in thousands) | ​ | Contractual Allowances | ​ | Allowances for doubtful | ​ |
​ | ​ | and adjustments | ​ | accounts | ​ | Total
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Medicaid | ​ | $ | 27 | ​ | $ | 31 | ​ | $ | (13) | ​ | $ | 1 | ​ | $ | 14 | ​ | $ | 32
Medicare | ​ |  | 2,050 | ​ |  | 1,993 | ​ |  | (51) | ​ |  | 11 | ​ |  | 1,999 | ​ |  | 2,004
Self-pay | ​ |  | 97 | ​ |  | 116 | ​ |  | — | ​ |  | — | ​ |  | 97 | ​ |  | 116
Third party payers | ​ |  | 2,057 | ​ |  | 1,821 | ​ |  | (103) | ​ |  | (199) | ​ |  | 1,954 | ​ |  | 1,622
Contract diagnostics | ​ |  | — | ​ |  | 21 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 21
​ | ​ |  | 4,231 | ​ |  | 3,982 | ​ |  | (167) | ​ |  | (187) | ​ |  | 4,064 | ​ |  | 3,795
Other | ​ |  | 742 | ​ |  | 373 | ​ |  | — | ​ |  | — | ​ |  | 742 | ​ |  | 373
​ | ​ | $ | 4,973 | ​ | $ | 4,355 | ​ | $ | (167) | ​ | $ | (187) | ​ | $ | 4,806 | ​ | $ | 4,168
​ ​
Schedule of Receivables | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) |  | June 30, 2022 |  | December 31, 2021
Medicaid | ​ | $ | 38 | ​ | $ | 45
Medicare | ​ |  | 1,051 | ​ |  | 727
Self-pay | ​ |  | 212 | ​ |  | 139
Third party payers | ​ |  | 1,683 | ​ |  | 2,111
Contract diagnostic services and other | ​ |  | 256 | ​ |  | 159
​ | ​ | $ | 3,240 | ​ | $ | 3,181
Less allowance for doubtful accounts | ​ |  | (2,113) | ​ |  | (2,484)
Accounts receivable, net | ​ | $ | 1,127 | ​ | $ | 697
Schedule of Allowance for Doubtful Accounts | The following table presents the roll-forward of the allowance for doubtful accounts for the six months ended June 30, 2022.
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Allowance for
​ | ​ | ​ | ​ | ​ | Doubtful
(dollars in thousands) | ​ | ​ | ​ | ​ | Accounts
Balance, January 1, 2022 |  | ​ |  | ​ | $ | (2,484)
Collection Allowance: |  | ​ |  | ​ |  |
Medicaid | ​ | $ | (13) | ​ |  |
Medicare | ​ |  | (51) | ​ |  |
Third party payers | ​ |  | (103) | ​ |  |
​ | ​ |  | (167) | ​ |  |
Bad debt expense | ​ | $ | 2 | ​ |  |
Total charges | ​ |  |  | ​ |  | (165)
Other | ​ | ​ | ​ | ​ | ​ | 536
Balance, June 30, 2022 | ​ |  |  | ​ | $ | (2,113)
Schedule of Customer Revenue and Accounts Receivable Concentrations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Net sales | ​ | ​ | Accounts receivable, as of | ​
​ | ​ | Three Months Ended | ​ | ​ | Six Months Ended | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | ​ | June 30, | ​ | ​ | June 30, | ​ | December 31, | ​
​ | ​ | 2022 | ​ | 2021 | ​ | ​ | 2022 | ​ | 2021 | ​ | ​ | 2022 | ​ | 2021 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer A | ​ | * | ​ | * | ​ | ​ | * | ​ | * | ​ | ​ | 13 | % | 21 | %
Customer B | ​ | * | ​ | * | ​ | ​ | * | ​ | * | ​ | ​ | 10 | % | * | ​
Customer C | ​ | * | ​ | 10 | % | ​ | * | ​ | * | ​ | ​ | * | ​ | 12 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* represents less than 10% | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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