Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 199,597	$ 272,127
Restricted cash	4,296	2,221
Investments	0	28,239
Trade receivables	26,212	8,646
Inventories	13,663	7,039
Prepaid expenses and other current assets	8,975	5,528
Total current assets	252,743	323,800
Property and equipment, net	7,829	7,113
Other assets	5,191	3,802
Total assets	265,763	334,715
Liabilities and Stockholders’ Equity
Accounts payable	19,693	18,713
Accrued expenses	56,308	33,942
Interest payable	25,553	21,670
Deferred revenue	602	150
Lease financing obligation	1,452	1,179
Non-recourse notes payable	30,000	30,000
Total current liabilities	133,608	105,654
Lease financing obligation	5,035	3,871
Royalty financing obligation	142,114	124,717
Secured term loan	132,050	119,735
Stockholders’ equity:
Preferred stock, $0.001 par value; shares authorized - 5,000; no shares issued and outstanding	0	0
Common stock, $0.01 par value; shares authorized - 450,000; shares issued and outstanding – 179,791 in 2021 and 176,883 in 2020	1,798	1,769
Additional paid-in capital	1,040,769	1,002,408
Accumulated other comprehensive income	114	3
Accumulated deficit	(1,189,725)	(1,023,442)
Total stockholders’ equity	(147,044)	(19,262)
Total liabilities and stockholders’ equity	$ 265,763	$ 334,715

Carrying amount as of the balance sheet date of obligations for future royalties.

No definition available.

Name:	bcrx_FutureRoyaltiesPayable
Namespace Prefix:	bcrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).