XML 82 R61.htm IDEA: XBRL DOCUMENT
v3.20.4

Warrants to Purchase Convertible Preferred Stock - Summary of Activity for Convertible Preferred Stock Warrants (Details) shares in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 $ / shares shares
Series E Convertible Preferred Stock Warrants |
Class Of Warrant Or Right [Line Items] |
Outstanding ‑ December 31, 2019, warrants | shares | 925
Forfeited/canceled, warrants | shares | (925)
Weighted average exercise price, Outstanding ‑ December 31, 2019 | $ / shares | $ 5.00
Weighted average exercise price, Forfeited/canceled | $ / shares | $ (5.00)
Series G Convertible Preferred Stock Warrants |
Class Of Warrant Or Right [Line Items] |
Outstanding ‑ December 31, 2019, warrants | shares | 613
Reclassification of warrant liability to additional paid-in capital, warrants | shares | (613)
Weighted average exercise price, Outstanding ‑ December 31, 2019 | $ / shares | $ 0.75
Weighted average exercise price, Reclassification of warrant liability to additional paid-in capital | $ / shares | $ (0.75)

X
- Definition Share based compensation arrangement by share based payment award non-options forfeitures and expirations in period weighted average exercise price. + References No definition available. + Details
Name: | bdsx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | bdsx_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options outstanding weighted average exercise price. + References No definition available. + Details
Name: | bdsx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix: | bdsx_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangements by share based payment award non options reclassification of warrant liability to additional paid in capital weighted average exercise price. + References No definition available. + Details
Name: | bdsx_ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsReclassificationOfWarrantLiabilityToAdditionalPaidInCapitalWeightedAverageExercisePrice
Namespace Prefix: | bdsx_
Data Type: | num:perShareItemType
Balance Type: | na
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_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase (decrease) in the number of shares under non-option equity instrument agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=bdsx_SeriesEConvertiblePreferredStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=bdsx_SeriesGConvertiblePreferredStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |