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Note 7 - Lease Obligations and Other Contingencies (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Lessee, Lease, Liability, Maturity [Table Text Block]

Remaining Maturities of Lease Liabilities Year Ending December 31,		Operating Leases
2020		$	1,257
2021			645
2022			582
2023			563
2024			568
Thereafter			7,903
Total lease payments			11,518
Less imputed interest			6,488
Total		$	5,030

X

- Definition

Tabular disclosure of undiscounted cash flows of both operating and finance lease liabilities. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating and finance lease liabilities recognized in statement of financial position.

+ References

No definition available.

+ Details

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Namespace Prefix:	bcrx_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration