Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 13,521	$ 24,043
Marketable securities	58,691	62,106
Accounts receivable	1,945	4,420
Receivables from collaborative partners	8,943	8,135
Inventories	8,029	5,395
Prepaid and other current assets	6,341	5,390
Total current assets	97,470	109,489
Marketable securities, long-term	16,819	53,644
Property and equipment, net	1,400	1,070
Intangible assets, net	26,995
Other assets	425	169
TOTAL ASSETS	143,109	164,372
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable and accrued liabilities	30,168	26,784
Deferred product sales	4,519	6,960
Deferred license revenue	5,550	6,032
Other current liabilities	37	64
Total current liabilities	40,274	39,840
Deferred license revenue, non-current portion	15,158	17,932
Other long-term liabilities	2,276	682
Commitments
Shareholders' equity:
Common stock, no par value	207,492	203,511
Accumulated deficit	(122,162)	(97,580)
Accumulated other comprehensive gain (loss)	71	(13)
Total shareholders' equity	85,401	105,918
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 143,109	$ 164,372