XML 96 R17.htm IDEA: XBRL DOCUMENT v3.2.0.727

Note 1 - Summary of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
US Department of Health and Human Services [Member] | Billed Revenues [Member]
Receivables	$ 2,258
US Department of Health and Human Services [Member] | Unbilled Revenues [Member]
Receivables	2,011	$ 2,778
US Department of Health and Human Services [Member]
Receivables	4,269	2,778
Shionogi and Co. Ltd [Member] | Billed Revenues [Member]
Receivables	$ 27	$ 1,071
Shionogi and Co. Ltd [Member] | Unbilled Revenues [Member]
Receivables
Shionogi and Co. Ltd [Member]
Receivables	$ 27	$ 1,071
Billed Revenues [Member]
Receivables	2,285	1,071
Unbilled Revenues [Member]
Receivables	2,011	2,778
Receivables	$ 4,296	$ 3,849

X

- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.3,4)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 3



-Subparagraph a



-Article 5

+ Details

Name:	us-gaap_ReceivablesNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=bcrx_USDepartmentOfHealthAndHumanServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis=us-gaap_BilledRevenuesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis=us-gaap_UnbilledRevenuesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=bcrx_ShionogiAndCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: