Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net loss	$ (43,779)	$ (13,306)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	194	221
Accretion of discount on convertible notes	3,587
Change in valuation of warrant liability		(10,193)
Warrant liability transferred to APIC upon exercise of warrant		1,866
Amortization of deferred compensation related to restricted stock (including restricted stock awards that contain performance conditions)	1,410	1,105
Amortization of deferred financing costs	320
Unrecognized tax benefit liability	(6,863)	131
Deferred income taxes	(7,710)
Stock compensation expense	2,136	1,434
Changes in:
Accounts receivable, net	(1,141)	(720)
Inventories, net	(5,139)	11
Recoverable income taxes		2,006
Prepaid expenses and other current assets	(711)	(72)
Accounts payable	6,511	(6,156)
Accrued interest on convertible notes	4,400
Other current liabilities	(609)	(1,460)
Deferred revenues	(176)	358
Net cash used in operating activities	(47,570)	(24,775)
Cash flows from investing activities:
Purchases of held-to-maturity securities (investments-short-term)	(21,628)	(19,871)
Capital expenditures	(91)	(21)
Changes in other long-term assets	4	5
Net cash used in investing activities	(21,715)	(19,887)
Cash flows from financing activities:
Proceeds from issuance of common stock	477	1,372
Proceeds from issuance of convertible notes, net of expenses	222,697	4,250
Changes in other long-term liabilities	(32)	(25)
Net cash provided by financing activities	223,142	5,597
Net increase (decrease) in cash and cash equivalents	153,857	(39,065)
Cash and cash equivalents at beginning of period	44,791	108,172
Cash and cash equivalents at end of period	198,648	69,107
Other information:
Income tax paid
Interest paid	$ 20	$ 70