<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2022"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="sibn-20230227.xsd" xlink:type="simple"/>
    <context id="i180351355f474d21a53d51e6526c95c6_D20230227-20230227">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001459839</identifier>
        </entity>
        <period>
            <startDate>2023-02-27</startDate>
            <endDate>2023-02-27</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV80L2ZyYWc6MWQyY2JiZTJmNmU4NGU3YzlhNjIxM2YyZTQzOWI5Y2MvdGFibGU6MGIwMTg5YmE2ODk3NDU4ZmFiMTRlZGVhNTQxYjI4ZTAvdGFibGVyYW5nZTowYjAxODliYTY4OTc0NThmYWIxNGVkZWE1NDFiMjhlMF8yLTEtMS0xLTQ4Mzgw_dd0f3d31-1bfd-4473-b811-f4a4b5802a5c">0001459839</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV80L2ZyYWc6MWQyY2JiZTJmNmU4NGU3YzlhNjIxM2YyZTQzOWI5Y2MvdGFibGU6MGIwMTg5YmE2ODk3NDU4ZmFiMTRlZGVhNTQxYjI4ZTAvdGFibGVyYW5nZTowYjAxODliYTY4OTc0NThmYWIxNGVkZWE1NDFiMjhlMF8zLTEtMS0xLTQ4Mzgw_9eca9ac7-f26f-46b0-9e88-8b54d24786d7">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjE4_7a012b91-860e-4e5d-829d-9c140114ef3d">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8zNzk_0d31e638-b6b4-46a6-9eb5-72c0d4fc4d11">2023-02-27</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjE5_86bb97e6-8fd7-4eb3-8a02-17a58294bca1">SI-BONE,&#160;INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6NjRmMzMyYTJjMDI3NDljMGIxZThjYzBhNDg3NjE4MmMvdGFibGVyYW5nZTo2NGYzMzJhMmMwMjc0OWMwYjFlOGNjMGE0ODc2MTgyY18wLTAtMS0xLTQ4Mzgw_d18d0e8a-7d3b-4398-9c0a-463731d4487a">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6NjRmMzMyYTJjMDI3NDljMGIxZThjYzBhNDg3NjE4MmMvdGFibGVyYW5nZTo2NGYzMzJhMmMwMjc0OWMwYjFlOGNjMGE0ODc2MTgyY18wLTItMS0xLTQ4Mzgw_fe1f8281-b7cd-462f-bee1-7572a5fefcb7">001-38701</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6NjRmMzMyYTJjMDI3NDljMGIxZThjYzBhNDg3NjE4MmMvdGFibGVyYW5nZTo2NGYzMzJhMmMwMjc0OWMwYjFlOGNjMGE0ODc2MTgyY18wLTQtMS0xLTQ4Mzgw_4534890e-a996-420d-9780-ff2aa7708614">26-2216351</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjI1_fd74eaa9-eb79-484e-9228-94337808449f">471 El Camino Real</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjI2_4152f8a2-ba4b-4dce-8181-6bff50dbb17a">Suite&#160;101</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjIw_9a8c84ef-27f7-4cc5-a0a7-37916a9c2de4">Santa Clara</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjI3_f62704ee-ad8b-4a0c-a613-f2619fb98679">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjIx_c820ecd4-3505-4de0-b84c-b13c90dbfa90">95050</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjIy_3687580e-83b4-4ceb-beee-329330a4a82f">408</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjIz_5dc9a526-f111-41cc-9f22-dc3142ccc95f">207-0700</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6NDdiMDAxYWYxOWI4NDgwOWI2OWY5ZDdjZWEwNGIxZTQvdGFibGVyYW5nZTo0N2IwMDFhZjE5Yjg0ODA5YjY5ZjlkN2NlYTA0YjFlNF8wLTAtMS0xLTQ4Mzgw_3f848f22-5c82-42ed-87ee-59cc86c2e7b2">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6Njg4Nzg3ZDg2MjliNDIxZWEyMmQ1OWM2NTQ0NjUxZjYvdGFibGVyYW5nZTo2ODg3ODdkODYyOWI0MjFlYTIyZDU5YzY1NDQ2NTFmNl8wLTAtMS0xLTQ4Mzgw_d2bc7e5f-a920-4b9b-ae4e-1a99e4da948b">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6NzRjZjM5NTc5YzExNDQ4ZjhjNTc1MTVlMzRkNDJlYjcvdGFibGVyYW5nZTo3NGNmMzk1NzljMTE0NDhmOGM1NzUxNWUzNGQ0MmViN18wLTAtMS0xLTQ4Mzgw_8b2fd06a-db71-4940-afbf-ae158bbbd3c4">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6MzdjY2Q2M2RiMDEwNDU0OWI3MzM5MzJlNzFmZDAyZjUvdGFibGVyYW5nZTozN2NjZDYzZGIwMTA0NTQ5YjczMzkzMmU3MWZkMDJmNV8wLTAtMS0xLTQ4Mzgw_94aaf633-4246-4cfc-a2b7-07c06d43cd37">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6OTI1YTA0ODgxMzJkNGE0OWE5NmNlNWIyMmEwYjQxM2UvdGFibGVyYW5nZTo5MjVhMDQ4ODEzMmQ0YTQ5YTk2Y2U1YjIyYTBiNDEzZV8xLTAtMS0xLTQ4Mzgw_44479719-738d-421b-915c-c7c7ef1f65b8">Common Stock, par value $0.0001&#160;per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6OTI1YTA0ODgxMzJkNGE0OWE5NmNlNWIyMmEwYjQxM2UvdGFibGVyYW5nZTo5MjVhMDQ4ODEzMmQ0YTQ5YTk2Y2U1YjIyYTBiNDEzZV8xLTEtMS0xLTQ4Mzgw_f7678574-3aad-4c2a-b4fa-d03458b8b42c">SIBN</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGFibGU6OTI1YTA0ODgxMzJkNGE0OWE5NmNlNWIyMmEwYjQxM2UvdGFibGVyYW5nZTo5MjVhMDQ4ODEzMmQ0YTQ5YTk2Y2U1YjIyYTBiNDEzZV8xLTItMS0xLTQ4Mzgw_b6f6cdb7-d22f-4fa9-b754-7b01390f7aea">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="i180351355f474d21a53d51e6526c95c6_D20230227-20230227"
      id="id3VybDovL2RvY3MudjEvZG9jOmYzZTNhNzk3MTIzMjQxMDY4NTcyMmM0YTQ1MDA0YTVhL3NlYzpmM2UzYTc5NzEyMzI0MTA2ODU3MjJjNGE0NTAwNGE1YV8xL2ZyYWc6Yzk2OGRkZWM2MGU2NDQxNDhjMjVlMjkwYTk5NDVhZWEvdGV4dHJlZ2lvbjpjOTY4ZGRlYzYwZTY0NDE0OGMyNWUyOTBhOTk0NWFlYV8xNjE2_30b9733f-efca-4a99-97f3-9237696dbe28">false</dei:EntityEmergingGrowthCompany>
</xbrl>
