Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 137,686	$ 90,642
Accounts receivable, net	3,803	3,972
Other current assets	2,640	2,256
Total current assets	144,129	96,870
Property and equipment, net	3,944	4,122
Intangible assets, net	6,666	30,369
Goodwill	13,074	13,074
Other assets	1,684	1,522
Total assets	169,497	145,957
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	444	3,359
Accrued expenses	10,533	9,555
Contingent consideration liability	7,050
Current portion of debt, net	5,419	2,445
Total current liabilities	23,446	15,359
Long-term debt, net	39,180	47,242
Contingent consideration liability	3,950	16,800
Deferred tax liability	28	1,575
Other liabilities	1,818	1,528
Total liabilities	68,422	82,504
Commitments and Contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value Authorized - 20,000 shares; issued and outstanding - none	0	0
Common stock, $0.0013 par value Authorized - 160,000 shares; issued - 84,742 shares in 2018 and 71,645 shares in 2017	110	93
Additional paid-in capital	713,019	609,829
Treasury stock at cost, 200 shares of common stock	(2,741)	(2,741)
Subscription receivable		(2,109)
Accumulated other comprehensive loss	(105)	(33)
Accumulated deficit	(609,208)	(541,586)
Total stockholders’ equity	101,075	63,453
Total liabilities and stockholders’ equity	$ 169,497	$ 145,957