Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 21,221	$ 87,820
Accounts receivable, net	5,834	2,960
Inventory, net	6,013	2,211
Prepaid expenses and other current assets	3,388	4,467
Total current assets	36,456	97,458
Goodwill	20,123
Intangible assets, net	14,873
Right-of-use lease assets	536	15,491
Property and equipment, net	215	18,389
Restricted cash	40	909
Total assets	72,243	132,247
Current liabilities:
Accounts payable	2,762	4,177
Accrued expenses	6,494	9,312
Accrued payroll and related expenses	2,878	8,332
Lease liabilities, current portion	204	2,766
Total current liabilities	12,338	24,587
Deferred royalty obligation, net	124,437	124,379
Accrued interest expense on deferred royalty obligation, less current portion	19,111	12,790
Lease liabilities, less current portion	332	26,481
Other noncurrent liabilities	4,112
Total liabilities	160,330	188,237
Commitments and contingencies (Note 6)
Shareholders’ deficit:
Common Stock, $0.0001 par value; 100,000,000 shares authorized, 27,402,648 and 27,195,469 shares issued and outstanding at December 31, 2020 and December 31, 2019, respectively	3	3
Additional paid-in capital	984,756	977,432
Accumulated deficit	(1,076,752)	(1,037,331)
Total shareholders’ deficit	(88,087)	(55,990)
Total liabilities and shareholders’ deficit	72,243	132,247
Series C-1 Convertible Preferred Stock
Shareholders’ deficit:
Series C-12 Convertible Preferred Stock, $0.0001 par value; 11,000 shares authorized, 3,906 shares issued and outstanding at December 31, 2020 and December 31, 2019; and liquidation preference of $3,906 at December 31, 2020 and December 31, 2019	$ 3,906	$ 3,906