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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Tables) | 9 Months Ended
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Sep. 30, 2025
SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE |
Schedule of Net Revenues | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended September 30,
(dollars in thousands) | ​ | Diagnostic Testing
​ |  | 2025 |  | 2024
Medicaid | ​ | $ | 11 | ​ | $ | 8
Medicare | ​ |  | 2,788 | ​ |  | 1,819
Self-pay | ​ |  | 4 | ​ |  | 1
Third party payers | ​ |  | 3,318 | ​ |  | 2,743
Contract diagnostics and other | ​ |  | 43 | ​ |  | 28
Service revenue, net | ​ | $ | 6,164 | ​ | $ | 4,599
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Nine Months Ended September 30,
(dollars in thousands) | ​ | Diagnostic Testing
​ |  | 2025 |  | 2024
Medicaid | ​ | $ | 24 | ​ | $ | 33
Medicare | ​ |  | 6,977 | ​ |  | 4,435
Self-pay | ​ |  | 14 | ​ |  | 33
Third party payers | ​ |  | 8,327 | ​ |  | 6,796
Contract diagnostics and other | ​ |  | 84 | ​ |  | 32
Service revenue, net | ​ | $ | 15,426 | ​ | $ | 11,329
Schedule of Gross to Net Sales Adjustments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended September 30,
(dollars in thousands) | ​ | ​ | ​ | Contractual Allowances and | ​ | Revenues, net of Contractual
​ | ​ | Gross Revenues | ​ | adjustments | ​ | Allowances and adjustments
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Medicaid | ​ | $ | 11 | ​ | $ | 8 | ​ | $ | — | ​ | $ | — | ​ | $ | 11 | ​ | $ | 8
Medicare | ​ |  | 2,788 | ​ |  | 1,819 | ​ |  | — | ​ |  | — | ​ |  | 2,788 | ​ |  | 1,819
Self-pay | ​ |  | 4 | ​ |  | 1 | ​ |  | — | ​ |  | — | ​ |  | 4 | ​ |  | 1
Third party payers | ​ |  | 11,612 | ​ |  | 9,356 | ​ |  | (8,294) | ​ |  | (6,613) | ​ |  | 3,318 | ​ |  | 2,743
Contract diagnostics and other | ​ |  | 43 | ​ |  | 28 | ​ |  | — | ​ |  | — | ​ |  | 43 | ​ |  | 28
​ | ​ |  | 14,458 | ​ |  | 11,212 | ​ |  | (8,294) | ​ |  | (6,613) | ​ |  | 6,164 | ​ |  | 4,599
Product | ​ |  | 721 | ​ |  | 681 | ​ |  | — | ​ |  | — | ​ |  | 721 | ​ |  | 681
​ | ​ | $ | 15,179 | ​ | $ | 11,893 | ​ | $ | (8,294) | ​ | $ | (6,613) | ​ | $ | 6,885 | ​ | $ | 5,280
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Nine Months Ended September 30,
(dollars in thousands) | ​ | ​ | ​ | Contractual Allowances and | ​ | Revenues, net of Contractual
​ | ​ | Gross Revenues | ​ | adjustments | ​ | Allowances and adjustments
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Medicaid | ​ | $ | 24 | ​ | $ | 33 | ​ | $ | — | ​ | $ | — | ​ | $ | 24 | ​ | $ | 33
Medicare | ​ |  | 6,977 | ​ |  | 4,435 | ​ |  | — | ​ |  | — | ​ |  | 6,977 | ​ |  | 4,435
Self-pay | ​ |  | 14 | ​ |  | 33 | ​ |  | — | ​ |  | — | ​ |  | 14 | ​ |  | 33
Third party payers | ​ |  | 29,141 | ​ |  | 23,285 | ​ |  | (20,814) | ​ |  | (16,489) | ​ |  | 8,327 | ​ |  | 6,796
Contract diagnostics and other | ​ |  | 84 | ​ |  | 32 | ​ |  | — | ​ |  | — | ​ |  | 84 | ​ |  | 32
​ | ​ |  | 36,240 | ​ |  | 27,818 | ​ |  | (20,814) | ​ |  | (16,489) | ​ |  | 15,426 | ​ |  | 11,329
Product | ​ |  | 1,999 | ​ |  | 1,936 | ​ |  | — | ​ |  | — | ​ |  | 1,999 | ​ |  | 1,936
​ | ​ | $ | 38,239 | ​ | $ | 29,754 | ​ | $ | (20,814) | ​ | $ | (16,489) | ​ | $ | 17,425 | ​ | $ | 13,265
Schedule of Reported Revenues Net of Collection Allowance | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended September 30,
​ | ​ | Revenues, net of | ​ | ​ | ​ |
(dollars in thousands) | ​ | Contractual Allowances | ​ | Allowances for credit | ​ |
​ | ​ | and adjustments | ​ | losses | ​ | Total
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Medicaid | ​ | $ | 11 | ​ | $ | 8 | ​ | $ | (1) | ​ | $ | (3) | ​ | $ | 10 | ​ | $ | 5
Medicare | ​ |  | 2,788 | ​ |  | 1,819 | ​ |  | (51) | ​ |  | (27) | ​ |  | 2,737 | ​ |  | 1,792
Self-pay | ​ |  | 4 | ​ |  | 1 | ​ |  | — | ​ |  | — | ​ |  | 4 | ​ |  | 1
Third party payers | ​ |  | 3,318 | ​ |  | 2,743 | ​ |  | (66) | ​ |  | (41) | ​ |  | 3,252 | ​ |  | 2,702
Contract diagnostics and other | ​ |  | 43 | ​ |  | 28 | ​ |  | — | ​ |  | — | ​ |  | 43 | ​ |  | 28
​ | ​ |  | 6,164 | ​ |  | 4,599 | ​ |  | (118) | ​ |  | (71) | ​ |  | 6,046 | ​ |  | 4,528
Product | ​ |  | 721 | ​ |  | 681 | ​ |  | — | ​ |  | — | ​ |  | 721 | ​ |  | 681
​ | ​ | $ | 6,885 | ​ | $ | 5,280 | ​ | $ | (118) | ​ | $ | (71) | ​ | $ | 6,767 | ​ | $ | 5,209
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Nine Months Ended September 30,
​ | ​ | Revenues, net of | ​ | ​ | ​ |
(dollars in thousands) | ​ | Contractual Allowances | ​ | Allowances for credit | ​ |
​ | ​ | and adjustments | ​ | losses | ​ | Total
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Medicaid | ​ | $ | 24 | ​ | $ | 33 | ​ | $ | 32 | ​ | $ | (12) | ​ | $ | 56 | ​ | $ | 21
Medicare | ​ |  | 6,977 | ​ |  | 4,435 | ​ |  | (42) | ​ |  | (66) | ​ |  | 6,935 | ​ |  | 4,369
Self-pay | ​ |  | 14 | ​ |  | 33 | ​ |  | — | ​ |  | (3) | ​ |  | 14 | ​ |  | 30
Third party payers | ​ |  | 8,327 | ​ |  | 6,796 | ​ |  | (65) | ​ |  | (102) | ​ |  | 8,262 | ​ |  | 6,694
Contract diagnostics and other | ​ |  | 84 | ​ |  | 32 | ​ |  | — | ​ |  | — | ​ |  | 84 | ​ |  | 32
​ | ​ |  | 15,426 | ​ |  | 11,329 | ​ |  | (75) | ​ |  | (183) | ​ |  | 15,351 | ​ |  | 11,146
Product | ​ |  | 1,999 | ​ |  | 1,936 | ​ |  | — | ​ |  | — | ​ |  | 1,999 | ​ |  | 1,936
​ | ​ | $ | 17,425 | ​ | $ | 13,265 | ​ | $ | (75) | ​ | $ | (183) | ​ | $ | 17,350 | ​ | $ | 13,082
​
Schedule of Receivables | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) |  | September 30, 2025 |  | December 31, 2024
Medicaid | ​ | $ | 24 | ​ | $ | (12)
Medicare | ​ |  | 1,727 | ​ |  | 1,086
Self-pay | ​ |  | 11 | ​ |  | 13
Third party payers | ​ |  | 808 | ​ |  | 530
Contract diagnostic services, product and other | ​ |  | 437 | ​ |  | 177
​ | ​ | $ | 3,007 | ​ | $ | 1,794
Less allowance for credit losses | ​ |  | (1,050) | ​ |  | (995)
Accounts receivable, net | ​ | $ | 1,957 | ​ | $ | 799
Schedule of Allowance for Doubtful Accounts | The following table presents the roll-forward of the allowance for credit losses for the nine months ended September 30, 2025 and 2024.
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Nine Months Ended September 30,
(dollars in thousands) | ​ | ​ | 2025 | ​ | 2024
Balance, January 1 |  | $ | (995) | ​ | $ | (2,572)
Provision for credit losses: |  | ​ |  | ​ | ​ |
Medicaid | ​ | ​ | 32 | ​ | ​ | (12)
Medicare | ​ |  | (42) | ​ |  | (66)
Self-pay | ​ | ​ | — | ​ | ​ | (3)
Third party payers | ​ |  | (65) | ​ |  | (102)
​ | ​ |  | (75) | ​ |  | (183)
Credit loss income (expense) | ​ | ​ | 20 | ​ | ​ | —
Total charges | ​ |  | (55) | ​ |  | (183)
Balance, September 30 | ​ | $ | (1,050) | ​ | $ | (2,755)
Schedule of Customer Revenue and Accounts Receivable Concentrations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Net sales | ​ | ​ | Net sales | ​ | ​ | Accounts receivable, as of | ​
​ | ​ | Three Months Ended | ​ | ​ | Nine Months Ended | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | ​ | September 30, | ​ | ​ | September 30, | ​ | December 31, | ​
​ | ​ | 2025 | ​ | 2024 | ​ | ​ | 2025 | ​ | 2024 | ​ | ​ | 2025 | ​ | 2024 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer A | ​ | 27 | % | 24 | % | ​ | 16 | % | 14 | % | ​ | 26 | % | 29 | %
Customer B | ​ | 11 | % | * | ​ | ​ | * | ​ | * | ​ | ​ | * | ​ | * | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
* represents less than 10% | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​

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