Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 31,515	$ 21,462
Prepaid expenses and other current assets	3,732	1,556
Total current assets	35,247	23,018
Property and equipment, net	2,073	704
In-process research and development		5,500
Intangible assets, net	6,410	3,605
Goodwill	26,361	16,363
Restricted cash	1,924	1,825
Other assets	249	361
Total assets	72,264	51,376
Current liabilities:
Accounts payable	2,051	2,483
Accrued development costs	4,438	876
Accrued expenses	4,003	3,225
Short term debt, net of debt discount	14,833
Accrued purchase price liability	5,493
Deferred revenue	957	50
Current portion of settlement obligation	978
Other current liabilities	343	557
Deferred tax benefit	185	185
Total current liabilities	33,281	7,376
Long term debt, net of debt discount		7,269
Deferred revenue, net of current portion	1,173	946
Deferred tax liability	648	2,166
Deferred tax benefit, net of current portion	369	553
Other non-current liabilities	425	665
Total liabilities	$ 35,896	$ 18,975
Commitments and contingencies (Note 17)
Stockholders' equity:
Preferred stock $0.001 par value; Authorized - 5,000,000 shares; Issued and Outstanding - 0 shares at December 31, 2015 and 2014
Common stock, $0.001 par value; Authorized - 70,000,000 and 300,000,000 shares at December 31, 2015 and December 31, 2014, respectively; Issued - 24,377,573 and 12,934,102 shares at December 31, 2015 and December 31, 2014, respectively; Outstanding - 24,377,573 and 12,920,843 shares at December 31, 2015 and December 31, 2014, respectively	$ 24	$ 13
Additional paid-in capital	175,126	118,959
Accumulated other comprehensive loss	(23)
Accumulated deficit	(138,759)	(86,571)
Total stockholders' equity	36,368	32,401
Total liabilities, convertible preferred stock and stockholders' equity	$ 72,264	$ 51,376