Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 65,761	$ 91,551
Trade accounts receivable	4,684	12,577
Inventory	2,232	7,047
Prepaid expenses and other current assets	6,137	8,739
Total current assets	78,814	119,914
Property and equipment, net	459	1,710
Intangible assets	102,500	102,500
Goodwill	6,234	6,234
Other assets	1,995	1,147
Total assets	190,002	231,505
Current liabilities:
Accounts payable	1,791	4,549
Accrued expenses	9,551	6,374
Accrued compensation	2,639	3,652
Common stock warrant liabilities	69	809
Working capital advance note payable, net of discount of $3,493 and $3,733 at June 30, 2017 and December 31, 2016, respectively	3,507	3,267
Current portion of long-term debt	3,333	0
Deferred revenue	0	1,245
Current liabilities of discontinued operations	1,093	414
Total current liabilities	21,983	20,310
Long term debt	15,757	18,824
Deferred income taxes	17,425	17,425
Other long-term liabilities	1,455	1,390
Stockholders’ equity:
Common stock, $0.001 par value; 50,000 shares authorized; 24,839 and 24,813 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	25	25
Additional paid-in capital	568,995	565,954
Accumulated deficit	(489,538)	(445,223)
Total stockholders’ equity	79,482	120,756
Total liabilities and stockholders’ equity	$ 190,002	$ 231,505