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v3.23.1

Subsequent Events (Additional Information) (Details) - Subsequent Event [Member] - First Amendment [Member] $ in Millions | May 11, 2023 USD ($) shares
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Subsequent Event [Line Items] |
Minimum cash balance at maturity date | $ | $ 2.5
Warrant issued to purchase shares | shares | 500,000

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- Definition Minimum cash balance at maturity date. + References No definition available. + Details
Name: | bdsx_MinimumCashBalanceAtMaturityDate
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_CreditFacilityAxis=bdsx_FirstAmendmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |