Supplemental Disclosure for Statements of Cash Flows (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	May. 15, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Cash paid during the period for interest				$ 2,000,000	$ 1,400,000
Derivative liabilities		$ 63,000		63,000			$ 0
Deemed dividend on beneficial conversion feature of MT Preferred Stock		0	$ 0	(46,000)	0
Convertible Preferred Stock
Class of Stock [Line Items]
Deemed dividend on beneficial conversion feature of MT Preferred Stock	$ 46,000
Macrophage Therapeutics \| Convertible Preferred Stock
Class of Stock [Line Items]
Deemed dividend on beneficial conversion feature of MT Preferred Stock	$ 46,000
Capital Royalty Group
Class of Stock [Line Items]
End-of-term fee		$ 1,000,000		$ 1,000,000		$ 1,000,000
Oxford Finance, LLC
Class of Stock [Line Items]
End-of-term fee			$ 2,400,000		$ 2,400,000	$ 2,400,000