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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 6 Months Ended
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Jun. 30, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Summary of intangible assets | ​
​ | ​ | ​
​ | ​ | Estimated
​ | ​ | Useful Lives
​ |  | in years
Patents |  | 11
Schedule of breakdown of net revenue related to devices accounted for as purchases subject to ASC 606 and leases subject to ASC 842 | The following table provides a breakdown of net revenue related to devices accounted for as purchases subject to Accounting Standards Codification (“ASC”) 606 – “Revenue from Contracts with Customers” (“ASC 606") and leases subject to ASC 842 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended June 30, | ​ | For the Six Months Ended June 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Device revenue |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |
Purchased | ​ | $ | 2,268 | ​ | $ | 2,337 | ​ | $ | 4,457 | ​ | $ | 4,668
Leased | ​ |  | 7,237 | ​ |  | 5,491 | ​ |  | 11,773 | ​ |  | 9,525
Total device revenue | ​ | $ | 9,505 | ​ | $ | 7,828 | ​ | $ | 16,230 | ​ | $ | 14,193
Supplies revenue | ​ | ​ | 27,254 | ​ | ​ | 23,194 | ​ | ​ | 51,612 | ​ | ​ | 40,956
Total revenue | ​ | $ | 36,759 | ​ | $ | 31,022 | ​ | $ | 67,842 | ​ | $ | 55,149

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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