Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 46,064	$ 64,501
Restricted cash	26,141	25,529
Accounts receivable	9,077	13,557
Inventories	43,889	58,706
Prepaid expenses and other current assets	13,192	13,645
Total current assets	138,363	175,938
Property and equipment, net	4,465	4,893
Intangible assets, net	232,825	242,917
Goodwill		9,600
Other assets	225	850
Total assets	375,878	434,198
Current liabilities:
Accounts payable	5,141	10,784
Accrued liabilities	48,981	39,103
Contingent litigation accrual (Note 13)	40,383	12,000
Long-term debt in default	25,000	25,000
Short-term debt, net	2,841
Total current liabilities	122,346	86,887
Long-term liabilities:
Convertible 2.0% senior notes, net	240,687	229,782
Other liabilities	1,722	1,984
Total liabilities	364,755	318,653
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; none issued and outstanding at June 30, 2016 and December 31, 2015
Common stock, $0.001 par value, 125,000 shares authorized at June 30, 2016 and December 31, 2015; 30,756 and 30,715 shares issued at June 30, 2016 and December 31, 2015, respectively; 29,504 and 29,464 shares outstanding at June 30, 2016 and December 31, 2015, respectively	31	31
Treasury Stock, at cost; 1,251 shares at June 30, 2016 and December 31, 2015	(35,000)	(35,000)
Additional paid-in-capital	527,788	519,166
Accumulated deficit	(481,167)	(368,804)
Accumulated other comprehensive (loss) income	(529)	152
Total stockholders' equity	11,123	115,545
Total liabilities and stockholders' equity	$ 375,878	$ 434,198