Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 21,462	$ 1,798
Prepaid expenses and other current assets	1,556	888
Total current assets	23,018	2,686
Property and equipment, net	704	90
In-process research and development	5,500	2,437
Intangible assets, net	3,605
Goodwill	16,363	1,499
Restricted cash	1,825	25
Other assets	374	57
Total assets	51,389	6,794
Current liabilities:
Accounts payable	2,483	1,067
Accrued expenses	4,101	2,492
Deferred revenue	50
Other current liabilities	557
Convertible notes		12,500
Deferred tax benefit	185	185
Total current liabilities	7,376	16,244
Long term debt, net of debt discount	7,282
Warrant liability		5,843
Deferred revenue, net of current portion	946
Deferred tax liability	2,166
Deferred tax benefit, net of current portion	553	738
Other non-current liabilities	665
Commitments and contingencies (Note 15)
Stockholders' equity (deficit):
Preferred stock, $0.001 par value; Authorized-5,000,000 shares; Issued and Outstanding -0 shares at December 31 2014 and 2013
Common stock, $0.001 par value; Authorized-- 300,000,000 shares; Issued--12,934,102 and 237,026 shares at December 31, 2014 and December 31, 2013, respectively; Outstanding--12,920,843 and 237,026 shares at December 31, 2014 and December 31, 2013, respectively	13
Additional paid-in capital	118,959	5,348
Accumulated deficit	(86,571)	(44,727)
Total stockholders' equity (deficit)	32,401	(39,379)
Total liabilities, convertible preferred stock and stockholders' equity	51,389	6,794
Series A Convertible Preferred Stock
Current liabilities:
Series A convertible preferred stock, $0.0001 par value; Authorized--0 and 55,653,728 shares at December 31, 2014 and December 31, 2013; Issued and Outstanding--0 and 27,248,746 shares at December 31, 2014 and December 31, 2013, respectively; aggregate liquidation preference of $0 and $27,249 at December 31, 2014 and December 31, 2013, respectively		$ 23,348