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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables) | 3 Months Ended
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Mar. 31, 2024
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE [Abstract] |
Schedule of Net Revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended March 31,
(dollars in thousands) | ​ | Diagnostic Testing
​ |  | 2024 |  | 2023
Medicaid | ​ | $ | 5 | ​ | $ | 8
Medicare | ​ |  | 1,091 | ​ |  | 880
Self-pay | ​ |  | 18 | ​ |  | 80
Third party payers | ​ |  | 1,705 | ​ |  | 1,100
Contract diagnostics and other | ​ |  | 2 | ​ |  | —
Service revenue, net | ​ | $ | 2,821 | ​ | $ | 2,068
​ ​
Schedule of Gross to Net Sales Adjustments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended March 31,
(dollars in thousands) | ​ | ​ | ​ | Contractual Allowances and | ​ | Revenues, net of Contractual
​ | ​ | Gross Revenues | ​ | adjustments | ​ | Allowances and adjustments
​ |  | 2024 |  | 2023 |  | 2024 |  | 2023 |  | 2024 |  | 2023
Medicaid | ​ | $ | 5 | ​ | $ | 8 | ​ | $ | — | ​ | $ | — | ​ | $ | 5 | ​ | $ | 8
Medicare | ​ |  | 1,091 | ​ |  | 880 | ​ |  | — | ​ |  | — | ​ |  | 1,091 | ​ |  | 880
Self-pay | ​ |  | 18 | ​ |  | 80 | ​ |  | — | ​ |  | — | ​ |  | 18 | ​ |  | 80
Third party payers | ​ |  | 5,968 | ​ |  | 3,835 | ​ |  | (4,263) | ​ |  | (2,735) | ​ |  | 1,705 | ​ |  | 1,100
Contract diagnostics and other | ​ |  | 2 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 2 | ​ |  | —
​ | ​ |  | 7,084 | ​ |  | 4,803 | ​ |  | (4,263) | ​ |  | (2,735) | ​ |  | 2,821 | ​ |  | 2,068
Other | ​ |  | 657 | ​ |  | 761 | ​ |  | — | ​ |  | — | ​ |  | 657 | ​ |  | 761
​ | ​ | $ | 7,741 | ​ | $ | 5,564 | ​ | $ | (4,263) | ​ | $ | (2,735) | ​ | $ | 3,478 | ​ | $ | 2,829
​
Schedule of Reported Revenues Net of Collection Allowance | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended March 31,
​ | ​ | Revenues, net of | ​ | ​ | ​ |
(dollars in thousands) | ​ | Contractual Allowances | ​ | Allowances for credit | ​ |
​ | ​ | and adjustments | ​ | losses | ​ | Total
​ |  | 2024 |  | 2023 |  | 2024 |  | 2023 |  | 2024 |  | 2023
Medicaid | ​ | $ | 5 | ​ | $ | 8 | ​ | $ | (2) | ​ | $ | (4) | ​ | $ | 3 | ​ | $ | 4
Medicare | ​ |  | 1,091 | ​ |  | 880 | ​ |  | (16) | ​ |  | — | ​ |  | 1,075 | ​ |  | 880
Self-pay | ​ |  | 18 | ​ |  | 80 | ​ |  | (2) | ​ |  | (8) | ​ |  | 16 | ​ |  | 72
Third party payers | ​ |  | 1,705 | ​ |  | 1,100 | ​ |  | (26) | ​ |  | — | ​ |  | 1,679 | ​ |  | 1,100
Contract diagnostics and other | ​ |  | 2 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 2 | ​ |  | —
​ | ​ |  | 2,821 | ​ |  | 2,068 | ​ |  | (46) | ​ |  | (12) | ​ |  | 2,775 | ​ |  | 2,056
Other | ​ |  | 657 | ​ |  | 761 | ​ |  | — | ​ |  | — | ​ |  | 657 | ​ |  | 761
​ | ​ | $ | 3,478 | ​ | $ | 2,829 | ​ | $ | (46) | ​ | $ | (12) | ​ | $ | 3,432 | ​ | $ | 2,817
​ ​
Schedule of Receivables | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) |  | March 31, 2024 |  | December 31, 2023
Medicaid | ​ | $ | 20 | ​ | $ | 25
Medicare | ​ |  | 1,579 | ​ |  | 1,561
Self-pay | ​ |  | 203 | ​ |  | 229
Third party payers | ​ |  | 1,476 | ​ |  | 1,641
Contract diagnostic services and other | ​ |  | 283 | ​ |  | 417
​ | ​ | $ | 3,561 | ​ | $ | 3,873
Less allowance for credit losses | ​ |  | (2,655) | ​ |  | (2,572)
Accounts receivable, net | ​ | $ | 906 | ​ | $ | 1,301
Schedule of Allowance for Doubtful Accounts | The following table presents the roll-forward of the allowance for credit losses for the three months ended March 31, 2024.
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Allowance for
​ | ​ | ​ | ​ | ​ | Credit
(dollars in thousands) | ​ | ​ | ​ | ​ | Losses
Balance, January 1, 2024 |  | ​ |  | ​ | $ | (2,572)
Provision for credit losses: |  | ​ |  | ​ |  |
Medicaid | ​ | $ | (2) | ​ |  |
Medicare | ​ |  | (16) | ​ |  |
Self-pay | ​ | ​ | (2) | ​ | ​ | ​
Third party payers | ​ |  | (26) | ​ |  |
​ | ​ |  | (46) | ​ |  |
Credit loss expense | ​ | $ | (37) | ​ |  |
Total charges | ​ |  |  | ​ |  | (83)
Balance, March 31, 2024 | ​ |  |  | ​ | $ | (2,655)
Schedule of Customer Revenue and Accounts Receivable Concentrations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Net sales | ​ | ​ | Accounts receivable, as of | ​
​ | ​ | Three Months Ended | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | ​ | March 31, | ​ | December 31, | ​
​ | ​ | 2024 | ​ | 2023 | ​ | ​ | 2024 | ​ | 2023 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer A | ​ | 11 | % | 18 | % | ​ | * | ​ | * | ​
Customer B | ​ | * | ​ | * | ​ | ​ | 17 | % | 13 | %
Customer C | ​ | 10 | % | * | ​ | ​ | * | ​ | * | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* represents less than 10% | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​

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