XML 60 R46.htm IDEA: XBRL DOCUMENT
v3.23.1

Equity - Additional Information (Details) |  |  |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 21, 2022 USD ($) $ / shares shares | Nov. 16, 2022 $ / shares shares | Mar. 07, 2022 USD ($) shares | Nov. 30, 2021 USD ($) | Mar. 31, 2023 USD ($) Facility $ / shares shares | Mar. 31, 2022 USD ($)
Class of Stock [Line Items] |  |  |  |  |  |
Proceeds from the sale of common shares |  |  |  |  |  | $ 1,599,000
Stock issuable per day, number of shares |  |  |  |  | $ (61,000) | 1,417,000
Warrants, expires period |  |  |  |  | Feb. 23, 2028 |
Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Proceeds from the sale of common shares | $ 40,600,000 |  |  |  |  |
Public offering price per share of common stock | $ / shares | $ 1.15 | $ 1.15 |  |  |  |
Warrants, expires period | Nov. 21, 2032 |  |  |  |  |
Warrant, exercise price | $ / shares |  | $ 1.0648 |  |  |  |
Series G Preferred Stock | 2018 Notes |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrant issued to purchase shares | shares |  |  |  |  | 613,333 |
Warrant, exercise price | $ / shares |  |  |  |  | $ 0.75 |
Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock issuable per day, number of shares |  |  |  | $ 50,000,000.0 |  |
Maximum | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrant issued to purchase shares | shares | 5,000,000 | 5,000,000 |  |  |  |
Tranche A Loan | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrant, exercise price | $ / shares | $ 1.0648 |  |  |  |  |
Equity Financing Programs |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Number of facility | Facility |  |  |  |  | 2 |
Equity Financing Programs | Lincoln Park |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Common stock issuable, committed to purchase |  |  | $ 600,000 |  |  |
Diligence expenses and legal fees |  |  | $ 129,000 |  |  |
Purchase agreement term |  |  | 36 months |  |  |
Stock issuable per day, number of shares | shares |  |  | 50,000 |  |  |
Shares issued or issuable, threshold limit description |  |  | Under applicable rules of the NASDAQ Global Market, in no event may the Company issue or sell to Lincoln Park under the Purchase Agreement more than 19.99% of the shares of the Company’s common stock outstanding immediately prior to the execution of the Purchase Agreement (the Exchange Cap), unless (i) the Company obtains stockholder approval to issue shares of common stock in excess of the Exchange Cap or (ii) the average price of all applicable sales of common stock to Lincoln Park under the Purchase Agreement equals or exceeds $2.20 per share, such that issuances and sales of the common stock to Lincoln Park under the Purchase Agreement would be exempt from the Exchange Cap limitation under applicable NASDAQ rules. |  |  |
Maximum percentage of common stock allowed to purchase by counterparty |  |  | 9.99% |  |  |
Shares issued as commitment fee | shares |  |  | 184,275 |  |  |
Commitment shares issuable on conditional basis | shares |  |  | 61,425 |  |  |
Adjustments to additional paid-in capital deferred offering costs |  |  |  |  | $ 0 | $ 18,000
Deferred offering costs |  |  | $ 729,000 |  | $ 654,000 |
Equity Financing Programs | Lincoln Park | Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Common stock issuable, committed to purchase |  |  | $ 50,000,000.0 |  |  |
Stock issuable per day, number of shares | shares |  |  | 100,000 |  |  |
Stock issuable per day, value |  |  | $ 1,500,000 |  |  |
Shares issued as commitment fee, value |  |  | $ 20,000,000.0 |  |  |
IPO |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrant issued to purchase shares | shares |  |  |  |  | 103,326 |
Warrant, exercise price | $ / shares |  |  |  |  | $ 4.46 |
Expected Term | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrants expected term | 10 years |  |  |  |  |
Volatility | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrants and rights outstanding, measurement input | 81.3 |  |  |  |  |
Dividend Yield | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrants and rights outstanding, measurement input | 0 |  |  |  |  |
Risk-Free Interest Rate | Perceptive Term Loan Facility |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrants and rights outstanding, measurement input | 3.67 |  |  |  |  |
At-The-Market Facility | Equity Financing Programs |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 29,500,000 |
LPC Facility | Equity Financing Programs |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 46,900,000 |

X
- Definition Adjustments to additional paid-in capital deferred offering costs. + References No definition available. + Details
Name: | bdsx_AdjustmentsToAdditionalPaidInCapitalDeferredOfferingCosts
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Commitment shares issuable on conditional basis. + References No definition available. + Details
Name: | bdsx_CommitmentSharesIssuableOnConditionalBasis
Namespace Prefix: | bdsx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Diligence expense and legal fees. + References No definition available. + Details
Name: | bdsx_DiligenceExpenseAndLegalFees
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum percentage of common stock allowed to purchase by counterparty. + References No definition available. + Details
Name: | bdsx_MaximumPercentageOfCommonStockAllowedToPurchaseByCounterparty
Namespace Prefix: | bdsx_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of facility. + References No definition available. + Details
Name: | bdsx_NumberOfFacility
Namespace Prefix: | bdsx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public offering price per share of common stock. + References No definition available. + Details
Name: | bdsx_PublicOfferingPricePerShareOfCommonStock
Namespace Prefix: | bdsx_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase agreement term. + References No definition available. + Details
Name: | bdsx_PurchaseAgreementTerm
Namespace Prefix: | bdsx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale of stock, shares issued as commitment fee. + References No definition available. + Details
Name: | bdsx_SaleOfStockSharesIssuedAsCommitmentFee
Namespace Prefix: | bdsx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale of stock, stock issuable per day, shares. + References No definition available. + Details
Name: | bdsx_SaleOfStockStockIssuablePerDayShares
Namespace Prefix: | bdsx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale of Stock, stock issuable per day, value. + References No definition available. + Details
Name: | bdsx_SaleOfStockStockIssuablePerDayValue
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Shares issued as commitment fee, value. + References No definition available. + Details
Name: | bdsx_SharesIssuedAsCommitmentFeeValue
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Shares issued or issuable, threshold limit description. + References No definition available. + Details
Name: | bdsx_SharesIssuedOrIssuableThresholdLimitDescription
Namespace Prefix: | bdsx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock issuable during period, value, committed shares. + References No definition available. + Details
Name: | bdsx_StockIssuableDuringPeriodValueCommittedShares
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- 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 Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.A) -URI https://asc.fasb.org/extlink&oid=122040515&loc=d3e105025-122735 + Details
Name: | us-gaap_DeferredOfferingCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=bdsx_PerceptiveTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesGPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=bdsx_NotesPayable2018NotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=bdsx_EquityFinancingProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=bdsx_LincolnParkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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