Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net Loss	$ (7,439,000)	$ (4,448,000)
Adjustments to reconcile net loss to net cash used for operating activities:
Depreciation	64,000	93,000
Amortization of debt discount and issuance costs	1,311,000	701,000
Interest expense added to loan principal	1,126,000	860,000
Loss on early extinguishment of debt and debt refinancing	835,000
Compensation charge for stock and share options	439,000	159,000
Changes in operating assets and liabilities:
Decrease in accounts receivable	216,000	2,000
Increase in prepaid expenses and other	(413,000)	(1,176,000)
(Increase) decrease in other assets	(2,951,000)	9,000
Decrease in accounts payable	(282,000)	(622,000)
Increase in accrued liabilities	372,000	174,000
Increase in deferred revenue		228,000
Net cash used for operating activities	(6,722,000)	(4,020,000)
Cash flows from investing activities:
Additions to property, plant and equipment	(167,000)	(257,000)
Other Assets (restricted cash)		(228,000)
Net cash used for investing activities	(167,000)	(485,000)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	83,458,000
Debt issuance costs	(1,243,000)
Principal payments on long-term debt	(65,960,000)	(4,000)
Net cash provided by (used for) financing activities	16,255,000	(4,000)
Net increase (decrease) in cash and cash equivalents	9,366,000	(4,509,000)
Cash and cash equivalents, beginning of period	1,685,000	11,370,000
Cash and cash equivalents, end of period	$ 11,051,000	$ 6,861,000