Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 80,108	$ 91,551
Trade accounts receivable	1,027	12,577
Inventory	9,099	7,047
Prepaid expenses and other current assets	8,584	8,739
Total current assets	98,818	119,914
Property and equipment, net	710	1,710
Intangible assets	102,500	102,500
Goodwill	6,234	6,234
Other assets	1,076	1,147
Total assets	209,338	231,505
Current liabilities:
Accounts payable	2,625	4,549
Accrued expenses	7,427	6,374
Accrued compensation	1,941	3,652
Common stock warrant liabilities	222	809
Working capital advance note payable, net of discount of $3,615 and $3,733 at March 31, 2017 and December 31, 2016, respectively	3,385	3,267
Current portion of long-term debt	1,333	0
Deferred revenue	972	1,245
Current liabilities of discontinued operations	439	414
Total current liabilities	18,344	20,310
Long term debt	17,625	18,824
Contingent consideration	53,400	52,800
Deferred income taxes	17,425	17,425
Other long-term liabilities	1,422	1,390
Stockholders’ equity:
Common stock, $0.001 par value; 50,000 shares authorized; 24,813 shares issued and outstanding at both March 31, 2017 and December 31, 2016	25	25
Additional paid-in capital	567,627	565,954
Accumulated deficit	(466,530)	(445,223)
Total stockholders’ equity	101,122	120,756
Total liabilities and stockholders’ equity	$ 209,338	$ 231,505