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Concentration of Credit Risk (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 USD ($) customer | Jun. 30, 2023 customer | Jun. 30, 2024 USD ($) item customer | Jun. 30, 2023 customer | Dec. 31, 2023 USD ($) customer item
Concentration of Credit Risk |  |  |  |  |
Deposits | $ 3,913 |  | $ 3,913 |  | $ 5,465
U.S. treasury bills |  |  |  |  | 10,494
U.S. Government money market fund accounts | 3,551 |  | 3,551 |  | $ 41,373
Crypto Asset, Cost | 60,000 |  | 60,000 |  |
Bitcoin investments | $ 54,945 |  | $ 54,945 |  |
Crypto Asset, Name [Extensible Enumeration] |  |  | smlr:BitcoinMember |  |
Customer concentration risk | Revenue |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Number of customers | customer | 3 | 2 | 3 | 2 |
Customer concentration risk | Revenue | Customer one |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage | 43.60% | 37.20% | 44.30% | 39.00% |
Customer concentration risk | Revenue | Customer two |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage | 26.60% | 33.50% | 25.60% | 33.50% |
Customer concentration risk | Revenue | Customer three |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage | 10.80% |  | 10.60% |  |
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 |  |  | 54.30% |  | 27.50%
Customer concentration risk | Accounts receivable | Customer two |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage |  |  | 16.00% |  | 27.50%
Customer concentration risk | Accounts receivable | Customer three |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage |  |  | 12.80% |  | 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 |  |  | 24.70% |  | 24.00%
Vendor concentration risk | Accounts payable | Vendor two |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage |  |  | 21.80% |  | 10.10%
Vendor concentration risk | Accounts payable | Vendor three |  |  |  |  |
Concentration of Credit Risk |  |  |  |  |
Concentration risk percentage |  |  | 11.50% |  |

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