CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 29,898	$ 57,019
Marketable securities	61,530	110,953
Accounts receivable, net	673	563
Inventory	189	791
Prepaid expenses and other current assets	2,089	4,802
Discontinued operations - current assets	51,180	6,162
Total current assets	145,370	179,499
Property and equipment, net	2,854	2,287
Intangible assets	7,217	7,273
Goodwill		18,504
Other assets	4,975	332
Discontinued operations - non-current assets		67,671
Total assets	160,416	275,566
Current liabilities:
Accounts payable	17,780	14,755
Accrued expenses	6,066	8,090
Current portion of lease liabilities	642	142
Discontinued operations - current liabilities	14,501	4,355
Total current liabilities	38,989	27,342
Other liabilities	4,005	476
Long-term debt	29,930	29,914
Contingent consideration	1,668	934
Deferred tax liability	549	549
Discontinued operations - non-current liabilities		1,227
Total liabilities	75,141	60,442
Stockholders' Equity:
Preferred stock, $0.00001 par value; 10,000,000 shares authorized and no shares issued or outstanding at September 30, 2019 and December 31, 2018
Common stock, $0.00001 par value; 100,000,000 shares authorized at September 30, 2019 and December 31, 2018; 41,380,811 and 41,210,725 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively
Additional paid-in capital	520,209	507,366
Accumulated other comprehensive loss	(1)	(69)
Accumulated deficit	(434,933)	(292,173)
Total stockholders’ equity	85,275	215,124
Total liabilities and stockholders’ equity	$ 160,416	$ 275,566