Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 EGEN, Inc. [Member]
Cash flows from operating activities:
Net loss	$ (19,038,469)	$ (4,301,611)
Non-cash items included in net loss:
Depreciation and amortization	262,125	230,625
Change in fair value of common stock warrant liability	(81,243)	(8,141,574)
Cash received for non-refundable technology transfer fee		5,000,000
Deferred revenue	(375,000)	(375,000)
Stock-based compensation	2,253,636	995,950
Treasury shares issued for services and 401(k) matching contributions	41,819	84,271
Change in deferred rent liability	(17,825)	(13,752)
Amortization of deferred finance charges and debt discount associated with notes payable	311,595	98,817
Loss on sale of investment securities	23,473	299,401
Net changes in:
Accrued interest on short term investments and other current assets	(5,455)	(29,469)
Accounts payable	2,714,365	(90,768)
Accrued liabilities	(932,504)	184,033
Net cash used in operating activities:	(14,843,483)	(6,059,077)
Cash flows from investing activities:
Purchases of investment securities	(29,175,818)	(42,584,990)
Proceeds from sale and maturity of investment securities	27,279,000	17,919,974
Cash used in acquisition of EGEN, Inc. (net of cash received)	(2,849,760)
Refund of deposit for letter of credit	50,000	50,000
Purchases of property and equipment	(398,011)	(57,494)
Net cash used in investing activities	(5,094,589)	(24,672,510)
Cash flows from financing activities:
Proceeds from sale of common stock equity, net of issuance costs	13,788,811	15,628,099
Proceeds from sale of preferred stock, net of issuance costs		13,616,442
Proceeds from exercise of common stock warrants		261,944
Proceeds from exercise of options to purchase common stock		184,047
Proceeds from note payable	5,000,000
Principal payments on notes payable	(10,891)	(780,021)
Net cash provided by financing activities	18,777,920	28,910,511
Decrease in cash and cash equivalents	(1,160,152)	(1,821,076)
Cash and cash equivalents at beginning of period	5,718,504	14,991,488
Cash and cash equivalents at end of period	4,558,352	13,170,412
Supplemental disclosures of cash flow information:
Interest paid	605,100	390,668
Fair value of common stock issued in acquisition of EGEN, Inc. assets			$ 10,850,977