Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating activities
Net income (loss)	$ 9,551	$ (1,590)
Less: gain from discontinued operations	2,588	3,670
Income (loss) from continuing operations	6,963	(5,260)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Non-cash change in estimated fair value of contingent liabilities	(368)	(1,191)
Write-off of in-process research and development	480	0
Depreciation and amortization	2,007	1,978
Share-based compensation	4,149	3,116
Deferred income taxes	237	446
Accretion of note payable	321	362
Other	(13)	(14)
Changes in operating assets and liabilities:
Accounts receivable	(918)	3,953
Inventory	86	(798)
Other current assets	(683)	329
Other long-term assets	173	322
Accounts payable and accrued liabilities	(2,306)	(3,009)
Other liabilities	(396)	15
Deferred revenue	(434)	(1,710)
Net cash provided by (used in) operating activities of continuing operations	9,298	(1,461)
Net cash used in operating activities of discontinued operations	(642)	(550)
Net cash provided by (used in) operating activities	8,656	(2,011)
Investing activities
Purchase of commercial license rights	(3,571)	0
Payments to CVR holders and former license holders	(100)	(8,049)
Purchases of property and equipment	(263)	(633)
Proceeds from sale of property and equipment	3	17
Proceeds from sale of short-term investments		10,000
Other	(40)
Net cash (used in) provided by investing activities	(3,971)	1,335
Financing activities
Proceeds from issuance of debt		7,500
Repayment of debt	(16,224)	(10,000)
Net proceeds from issuance of common stock		2,647
Net proceeds from employee stock purchase plan	84	68
Net proceeds from stock option exercises	2,345	466
Net cash (used in) provided by financing activities	(13,795)	681
Net (decrease) increase in cash and cash equivalents	(9,110)	5
Cash and cash equivalents at beginning of period	12,381	7,041
Cash and cash equivalents at end of period	3,271	7,046
Supplemental Disclosure of cash flow information
Interest paid	1,566	1,854
Taxes paid	5	15
Supplemental schedule of non-cash activity
Liability for commercial license rights	1,000
Accrued inventory purchases	227	449
Unrealized gain on AFS investments	$ 2,201	$ 0