CONDENSED BALANCE SHEETS (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 36,311	$ 22,526
Marketable securities	77,522	47,825
Accounts receivable	7,360	6,094
Receivables from collaborative partners	584	253
Inventories	5,014	1,571
Prepaid and other current assets	2,918	1,330
Total current assets	129,709	79,599
Marketable securities, long-term	50,377	6,537
Property and equipment, net	994	698
Other assets	181	197
TOTAL ASSETS	181,261	87,031
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable and accrued liabilities	23,522	18,473
Deferred product sales	420	1,041
Deferred license revenue	7,647	10,665
Other current liabilities	404	635
Current portion of long-term debt	121	2,170
Total current liabilities	32,114	32,984
Deferred license revenue, non-current portion	23,328	30,926
Other long-term liabilities	0	15
Commitments
Shareholders' equity:
Preferred stock, no par value
Common stock, no par value	200,831	191,343
Accumulated deficit	(75,167)	(168,306)
Accumulated other comprehensive gain	155	69
Total shareholders' equity	125,819	23,106
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 181,261	$ 87,031