Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2016		Mar. 31, 2015
Cash flows from operating activities:
Net loss	$ (3,362,000)		$ (404,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	110,000		388,000
Change in fair value of contingent consideration liability	(200,000)		(14,833,000)
Gain on restructuring of financing obligations	(2,506,000)		0
Gain on fair value of inventory received resulting from restructuring of financing obligations	(945,000)		0
Amortization of debt discount, deferred interest	576,000		642,000
Amortization of discount on available-for-sale securities	0		50,000
Depreciation and amortization	571,000		879,000
Impairment of property and equipment	0		1,381,000
Impairment of inventory	945,000		1,229,000
Impairment of prepaid expenses	0		1,024,000
Changes in operating assets and liabilities:
Receivables	(8,000)		74,000
Inventory	0		28,000
Prepaid expenses and other current assets	95,000		(293,000)
Other assets	28,000		165,000
Accounts payable	409,000		(234,000)
Accrued clinical trial expense and other accrued liabilities	1,092,000		(2,140,000)
Deferred revenues	(712,000)		(613,000)
Other liabilities	(346,000)		(77,000)
Net cash used in operating activities	(4,253,000)		(12,734,000)
Cash flows from investing activities:
Purchase of available-for-sale securities	0		(5,442,000)
Maturities of available-for-sale securities	0		13,540,000
Net cash (used in) provided by investing activities	0		8,098,000
Cash flows from financing activities:
Payment of contingent payment to Symphony Allegro Holdings, LLC	0		(867,000)
Change in restricted cash	0		1,396,000
Proceeds from financing obligations	1,000,000		0
Net cash provided by financing activities	1,000,000		529,000
Net decrease in cash and cash equivalents	(3,253,000)		(4,107,000)
Cash and cash equivalents at beginning of period	7,755,000	[1]	15,200,000
Cash and cash equivalents at end of period	$ 4,502,000		$ 11,093,000

[1] The condensed consolidated balance sheet at December 31, 2015 has been derived from audited consolidated financial statements at that date.