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Schedule of Changes in Fair Value Warrant Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Fair Value Disclosures [Abstract] |  |
Fair value at beginning of year | $ 4,210 | $ 2,843
Issuance of new warrants | 4,092 | 6,778
Exercise of warrants | (5,372) |
Change in fair value of warrant liability | (1,680) | (6,456)
Warrant inducement expense |  | 1,045
Fair value at end of year | $ 1,250 | $ 4,210

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- Definition Fair value warrant exercise of derivative liabilities. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Fair value warrant issuance of new derivative liabilities. + References No definition available. + Details
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Namespace Prefix: | BFRI_
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Balance Type: | debit
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- Definition Fair value warrant liability purchase warrant. + References No definition available. + Details
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Balance Type: | credit
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- Definition Warrant inducement expense. + References No definition available. + Details
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Namespace Prefix: | BFRI_
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Balance Type: | debit
Period Type: | duration

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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 25 -Paragraph 13 -SubTopic 10 -Topic 480 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481766/480-10-25-13 + Details
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- References No definition available. + Details
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