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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Sales, Net of Collection Allowance) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | $ 6,885 | $ 5,280 | $ 17,425 | $ 13,265
Allowance for credit losses | (118) | (71) | (75) | (183)
Net sales | 6,767 | 5,209 | 17,350 | 13,082
Medicaid |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for credit losses |  |  | 32 | (12)
Medicare |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for credit losses |  |  | (42) | (66)
Self-pay |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for credit losses |  |  |  | (3)
Third party payers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for credit losses |  |  | (65) | (102)
Service revenue, net |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 6,164 | 4,599 | 15,426 | 11,329
Allowance for credit losses | (118) | (71) | (75) | (183)
Net sales | 6,046 | 4,528 | 15,351 | 11,146
Service revenue, net | Medicaid |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 11 | 8 | 24 | 33
Allowance for credit losses | (1) | (3) | 32 | (12)
Net sales | 10 | 5 | 56 | 21
Service revenue, net | Medicare |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 2,788 | 1,819 | 6,977 | 4,435
Allowance for credit losses | (51) | (27) | (42) | (66)
Net sales | 2,737 | 1,792 | 6,935 | 4,369
Service revenue, net | Self-pay |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 4 | 1 | 14 | 33
Allowance for credit losses |  |  |  | (3)
Net sales | 4 | 1 | 14 | 30
Service revenue, net | Third party payers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 3,318 | 2,743 | 8,327 | 6,796
Allowance for credit losses | (66) | (41) | (65) | (102)
Net sales | 3,252 | 2,702 | 8,262 | 6,694
Service revenue, net | Contract diagnostics and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 43 | 28 | 84 | 32
Net sales | 43 | 28 | 84 | 32
Product |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue, net of contractual allowances and adjustments | 721 | 681 | 1,999 | 1,936
Net sales | $ 721 | $ 681 | $ 1,999 | $ 1,936

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