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INTANGIBLE ASSETS, NET (Tables) | 9 Months Ended
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Sep. 30, 2025
INTANGIBLE ASSETS, NET |
Schedule of total intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gross | ​ | Accumulated | ​ | ​ | ​ | ​ |  | Net Carrying
September 30, 2025 |  | Carrying Amount |  | Amortization | ​ | Impairment | ​ |  | Amount
Definite-lived: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patent | ​ | $ | 2,981 | ​ | $ | (2,436) | ​ | $ | (111) | ​ | $ | 434
License fees | ​ |  | 5,306 | ​ | ​ | (2,219) | ​ | ​ | — | ​ | ​ | 3,087
Total amortizing intangible assets | ​ | $ | 8,287 | ​ | $ | (4,655) | ​ | $ | (111) | ​ | $ | 3,521
Indefinite-lived: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trademarks | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 137
MSA signatory costs | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,202
License fee for predicate cigarette brand | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 350
Total indefinite-lived intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 2,689
Total intangible assets, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 6,210
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gross | ​ | Accumulated |  | ​ | ​ | ​ | Net Carrying
December 31, 2024 |  | Carrying Amount |  | Amortization |  | Impairment | ​ | Amount
Definite-lived: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patent | ​ | $ | 2,948 | ​ | $ | (2,268) | ​ | $ | (68) | ​ | $ | 612
License fees | ​ |  | 4,415 | ​ | ​ | (1,990) | ​ | ​ | — | ​ | ​ | 2,425
Total amortizing intangible assets | ​ | $ | 7,363 | ​ | $ | (4,258) | ​ | $ | (68) | ​ | $ | 3,037
Indefinite-lived: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trademarks | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 135
MSA signatory costs | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,202
License fee for predicate cigarette brand | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 350
Total indefinite-lived intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 2,687
Total intangible assets, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 5,724
Schedule of aggregate intangible asset amortization expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024
Cost of goods sold | ​ | $ | 2 | ​ | $ | 3 | ​ | $ | 8 | ​ | $ | 8
Research and development | ​ |  | 109 | ​ |  | 103 | ​ |  | 320 | ​ |  | 305
Total amortization expense | ​ | $ | 111 | ​ | $ | 106 | ​ | $ | 328 | ​ | $ | 313
Schedule of estimated future intangible asset amortization expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Remainder for 2025 |  | 2026 |  | 2027 | ​ | 2028 | ​ | 2029 | ​ | Thereafter
Amortization expense | ​ | $ | 101 | ​ | $ | 384 | ​ | $ | 379 | ​ | $ | 343 | ​ | $ | 255 | ​ | $ | 2,059
​

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