Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2014

Percentage of Revenue from Significant Customers

Revenue from significant customers as a percentage of the Company’s total revenue is as follows:

	Three months ended June 30,						Six months ended June 30,
	2014			2013			2014			2013
Orencia® Royalties from Bristol		—			25	%		—			24	%
Bioprocessing Customer A		48	%		39	%		44	%		38	%
Bioprocessing Customer B		22	%		15	%		22	%		14	%
Bioprocessing Customer C		14	%		10	%		14	%		13	%

Accounts Receivable

Percentage by Geographic Area or Significant Customers

Significant accounts receivable balances as a percentage of the Company’s total trade accounts receivable and royalties and other receivables balances are as follows:

	June 30, 2014			December 31, 2013
Orencia® Royalties from Bristol		—			42	%
Bioprocessing Customer A		33	%		17	%
Bioprocessing Customer B		18	%		8	%
Tenant improvement allowance due from landlord		—			15	%

Total Revenue

Percentage by Geographic Area or Significant Customers

The following table represents the Company’s total revenue by geographic area (based on the location of the customer):

	Three months ended June 30,						Six months ended June 30,
	2014			2013			2014			2013
Sweden		48	%		39	%		44	%		39	%
United States		23	%		46	%		32	%		47	%
United Kingdom		25	%		13	%		21	%		12	%
Other		4	%		2	%		3	%		2	%
Total		100	%		100	%		100	%		100	%