v3.22.0.1

Cover	Feb. 13, 2022
Cover [Abstract]
Document Type	8-K
Entity Registrant Name	BioDelivery Sciences International, Inc.
Entity Incorporation, State or Country Code	DE
Entity File Number	001-31361
Entity Tax Identification Number	35-2089858
Entity Address, Address Line One	4131 ParkLake Ave., Suite 225
Entity Address, City or Town	Raleigh,
Entity Address, Postal Zip Code	27612
City Area Code	919
Local Phone Number	582-9050
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common stock, par value $0.001
Trading Symbol	BDSI
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false
Amendment Flag	false
Document Period End Date	Feb. 13, 2022
Current Fiscal Year End Date	--12-31
Entity Address, State or Province	NC
Entity Central Index Key	0001103021

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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BIODELIVERY SCIENCES INTERNATIONAL INC 8-K