Condensed Consolidated Balance Sheets - Entity Domain - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 7,183,528	$ 1,477,143
Grants receivable	136,616	84,344
Prepaid expenses	133,603	334,629
Other current assets	108,285	14,675
Total current assets	7,562,032	1,910,791
Property and equipment, net	82,407	57,053
Goodwill	6,826,003	6,826,003
Other long term assets	11,017	11,017
Total assets	14,481,459	8,804,864
Current liabilities:
Accounts payable	981,746	1,313,247
Accrued compensation	451,238	230,381
Accrued clinical operations and site costs	359,541	494,110
Accrued lease contingency fee	590,504	590,504
Other accrued expenses	$ 552,511	245,421
Warrant liability		92,463
Total current liabilities	$ 2,935,540	2,966,126
Redeemable convertible preferred stock:
Redeemable convertible preferred stock, value		1,838,025
Redeemable convertible preferred stock, total		1,838,025
Stockholders' equity:
Common stock, $0.01 par value; 150,000,000 shares authorized as of June 30, 2015, 25,225,472 and 2,802,867 shares issued and outstanding as of June 30, 2015, and December 31, 2014, respectively	$ 252,255	28,029
Additional paid-in capital	62,630,665	24,492,450
Accumulated deficit	(51,339,315)	(24,550,308)
Total stockholders' equity	11,545,919	4,000,713
Total liabilities, redeemable convertible preferred stock and stockholders' equity	$ 14,481,459	8,804,864
Series A-1 Convertible Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock		4,029,576
Series C Convertible Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock		$ 966
Series D Convertible Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock	$ 1,981
Series E Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock	$ 333