Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Adjustments to reconcile net loss to net cash used for operating activities:	$ (13,775)	$ (16,697)
Depreciation	190	191
Amortization of debt discount and issuance costs	637	1,418
Interest expense added to loan principal	5,659	4,297
Loss on early extinguishment of debt and debt refinancing		835
Compensation charge for stock and share option awards	545	483
Changes in operating assets and liabilities:
Increase in accounts receivable	(239)	(96)
Increase in inventories	(68)	(217)
Increase in prepaid expenses and other	(133)	(67)
Increase in other assets	(214)	(2,774)
(Decrease) increase in accounts payable	(249)	173
Decrease in accrued liabilities	(842)	(172)
Net cash used for operating activities	(8,489)	(12,626)
Cash flows from investing activities:
Additions to property, plant and equipment	(25)	(167)
Net cash used for investing activities	(25)	(167)
Cash flows from financing activities:
Net proceeds from issuance of long-term debt		17,500
Debt issuance costs		(1,243)
Principal payments on long-term debt	(8)	(8)
Net cash (used for) provided by financing activities	(8)	16,249
Net (decrease) increase in cash and cash equivalents	(8,522)	3,456
Cash and cash equivalents, beginning of period	11,887	1,685
Cash and cash equivalents, end of period	$ 3,365	$ 5,141