Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Net loss for basic EPS	$ 29,108	$ (45,240)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	7,334	5,579
Share-Based Compensation, Restructuring Costs	0	201
Depreciation and amortization	1,227	1,395
Amortization of debt issuance costs and non-cash interest	370	422
Loss on early extinguishment of debt	1,254	0
Net gain on sale of business	(79,980)	0
Impairment of long-lived assets	838	0
Change in fair value of warrant liabilities	(26,418)	2,780
Change in fair value of embedded derivatives	14	(912)
Changes in operating assets and liabilities:
Trade accounts receivable	779	(518)
Inventory, net	(9,335)	797
Prepaid expenses and other current assets	(10,595)	482
Other assets	(4,978)	614
Accounts payable and accrued expenses	2,377	205
Restructuring liabilities	0	6
Deferred revenue	16,761	0
Net cash used in operating activities	(71,244)	(34,189)
Investing activities:
Purchases of property and equipment	(85)	(785)
Proceeds from sale of business	89,624	0
Restricted cash from sale of business	(8,500)	0
Net cash provided by (used in) investing activities	81,039	(785)
Financing activities:
Proceeds from note payable	7,000	0
Repayment of debt	(40,041)	0
Proceeds from exercise of common stock options	1,508	0
Proceeds from issuance of common stock	244	11,098
Net cash provided by financing activities	(31,289)	11,098
Net (decrease) increase in cash and cash equivalents	(21,494)	(23,876)
Cash and cash equivalents at beginning of period	72,021	41,228
Cash and cash equivalents at end of period	$ 50,527