Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 29,741	$ 24,165
Accounts receivable, net	1,665	621
Inventories	9,464	7,883
Interest receivable	13	12
Other current assets	7,231	5,335
Total Current Assets	48,114	38,016
Restricted cash	6,419	10,425
Accounts receivable, net of current portion		266
Property and equipment, net	6,404	5,772
Intellectual property, net	37,170	37,090
In-process research and development	17,276	15,920
Goodwill	70,310	68,697
Other long term assets	146	63
Total Assets	185,839	176,249
Current Liabilities
Accounts payable	2,219	3,984
Accrued expenses	8,221	8,206
Contingent consideration – current portion	6,918	10,502
Notes payable - current portion, net of debt discount		7,997
Total Current Liabilities	17,358	30,689
Long Term Liabilities
Contingent consideration – less current portion	11,108	12,298
Notes payable - less current portion, net of debt discount	12,896	4,995
Warrant liabilities	11,041
Net deferred tax liabilities	9,614	10,397
Total Liabilities	62,017	58,379
Commitments and Contingencies
Stockholders’ Equity
Common stock $0.001 par value, 750,000,000 shares authorized at June 30, 2017, and December 31, 2016; 148,538,492 and 115,781,030 shares issued at June 30, 2017 and December 31, 2016, respectively; and 148,536,356 and 115,687,351 shares outstanding at June 30, 2017 and December 31, 2016, respectively	148	115
Additional paid-in capital	455,853	426,609
Accumulated deficit	(332,971)	(302,844)
Treasury stock at cost, 2,136 and 93,679 shares at June 30, 2017 and December 31, 2016, respectively	(2)	(241)
Accumulated other comprehensive income (loss)	794	(5,769)
Total Stockholders’ Equity	123,822	117,870
Total Liabilities and Stockholders’ Equity	$ 185,839	$ 176,249