Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 64,493	$ 137,686
Accounts receivable, net	6,174	3,803
Other current assets	5,136	2,640
Total current assets	75,803	144,129
Property and equipment, net	9,254	3,944
Intangible assets, net	7,099	6,666
Goodwill	17,847	13,074
Operating right-of-use lease assets	13,681	0
Other assets	6,368	1,684
Total assets	130,052	169,497
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	674	444
Accrued expenses	12,461	10,533
Contingent consideration liability		7,050
Current portion of debt, net	6,437	5,419
Operating lease liabilities	572
Total current liabilities	20,144	23,446
Long-term debt, net	34,489	39,180
Operating lease liabilities	15,154
Contingent consideration liability	4,300	3,950
Deferred tax liability	28	28
Other liabilities		1,818
Total liabilities	74,115	68,422
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 - 86,621 shares in 2019 and 84,742 shares in 2018	112	110
Additional paid-in capital	725,356	713,019
Treasury stock at cost, 200 shares of common stock	(2,741)	(2,741)
Subscription receivable
Accumulated other comprehensive loss	(305)	(105)
Accumulated deficit	(666,485)	(609,208)
Total stockholders’ equity	55,937	101,075
Total liabilities and stockholders’ equity	$ 130,052	$ 169,497