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Concentration of Credit Risk (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2024 USD ($) customer | Sep. 30, 2023 customer | Sep. 30, 2024 USD ($) customer item | Sep. 30, 2023 customer | Dec. 31, 2023 USD ($) customer item | Jun. 30, 2024 USD ($)
Concentration of Credit Risk |  |  |  |  |  |
Deposits | $ 3,105 |  | $ 3,105 |  | $ 5,465 |
U.S. treasury bills |  |  |  |  | 10,494 |
U.S. Government money market fund accounts | 3,596 |  | 3,596 |  | $ 41,373 |
Crypto Asset, Cost | 68,400 |  | 68,400 |  |  |
Fair Value | $ 64,482 |  | $ 64,482 |  |  | $ 54,945
Crypto Asset, Name [Extensible Enumeration] |  |  | smlr:BitcoinMember |  |  |
Customer concentration risk | Revenue |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Number of customers | customer | 2 | 3 | 2 | 2 |  |
Customer concentration risk | Revenue | Customer one |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage | 44.00% | 36.40% | 44.20% | 34.40% |  |
Customer concentration risk | Revenue | Customer two |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage | 28.80% | 28.30% | 26.60% | 35.70% |  |
Customer concentration risk | Revenue | Customer three |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  | 11.40% |  |  |  |
Customer concentration risk | Accounts receivable |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Number of customers | customer |  |  | 3 |  | 3 |
Customer concentration risk | Accounts receivable | Customer one |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 55.90% |  | 27.50% |
Customer concentration risk | Accounts receivable | Customer two |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 16.20% |  | 27.50% |
Customer concentration risk | Accounts receivable | Customer three |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 10.70% |  | 23.60% |
Vendor concentration risk | Accounts payable |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Number of vendors | item |  |  | 3 |  | 2 |
Vendor concentration risk | Accounts payable | Vendor one |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 35.80% |  | 24.00% |
Vendor concentration risk | Accounts payable | Vendor two |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 22.70% |  | 10.10% |
Vendor concentration risk | Accounts payable | Vendor three |  |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |  |
Concentration risk percentage |  |  | 15.40% |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 310 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478785/954-310-50-2 + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-21 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-20 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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