Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 126,306	$ 138,909
Accounts receivable, net	2,097	4,864
Other current assets	3,676	4,328
Total current assets	132,079	148,101
Property and equipment, net	4,702	4,760
Intangible assets, net	30,528	30,581
Goodwill	13,074	13,074
Other assets	2,471	2,470
Total assets	182,854	198,986
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	971	567
Accrued expenses	12,705	15,764
Other current liabilities	677	26
Total current liabilities	14,353	16,357
Long-term debt, net	48,850	49,453
Contingent consideration liability	16,100	14,200
Deferred tax liability	13,010	13,010
Other liabilities	1,286	1,204
Total liabilities	93,599	94,224
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 - 70,425 shares in 2017 and 70,390 shares in 2016	92	92
Additional paid-in capital	598,904	598,069
Treasury stock at cost, 200 shares of common stock	(2,741)	(2,741)
Accumulated other comprehensive loss	(67)	(85)
Accumulated deficit	(506,933)	(490,573)
Total stockholders’ equity	89,255	104,762
Total liabilities and stockholders’ equity	$ 182,854	$ 198,986