Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities
Net loss	$ (12,566)	$ (16,026)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	110	135
Amortization	436	429
Stock-based compensation	1,051	370
Decrease in restricted stock repurchase liability		25
Equity in net loss of joint ventures	1,197	767
Change in fair value of preferred stock warrants	838	408
Changes in operating assets and liabilities:
Accounts receivable, net	(2,661)	(579)
Inventories	(1,122)	1,454
Prepaid expenses and other current assets	576	1,000
Due from related party	662	(47)
Accounts payable and other accrued liabilities	(11,052)	(6,403)
Net cash used in operating activities	(22,531)	(18,467)
Cash flows from investing activities
Capital expenditures	(113)	(8)
(Funding) return of principal balance of restricted cash	(463)	226
Investments in unconsolidated joint ventures	(68)	(4,980)
Return of capital from unconsolidated joint venture	924
Purchases of investments	(49,391)
Purchase of product rights	(603)	(257)
Net cash used in investing activities	(49,714)	(5,019)
Cash flows from financing activities
Reduction in short-term notes payable	(618)	(108)
Proceeds from issuance of long-term debt	15,000
Proceeds from issuance of preferred stock, net of issuance costs		39,407
Proceeds from issuance of common stock, net of issuance costs	101,573	12
Payment of deferred financing costs	(80)
Net cash provided by financing activities	115,875	39,311
Net increase in cash and cash equivalents	43,630	15,825
Cash and cash equivalents, at beginning of period	34,376	7,731
Cash and cash equivalents, at end of period	$ 78,006	$ 23,556