Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 11,934	$ 11,213
Marketable securities	18,559	25,604
Trade accounts receivable, net	3,576	4,021
Other current assets	2,095	2,456
Total current assets	36,164	43,294
Property and equipment, net	3,359	3,650
Intangibles, net	6,611	6,670
Goodwill	1,114	1,114
Other assets	2,342	2,660
Total assets	49,590	57,388
Current liabilities:
Accounts payable and other accrued liabilities	2,083	2,272
Deferred revenue	2,678	3,172
Note payable, current	2,245	0
Total current liabilities	7,006	5,444
Note payable, long-term	2,795	0
Lease liability and other long-term liabilities	2,512	2,494
Total liabilities	12,313	7,938
Commitments and contingencies (Note 14)
Shareholders’ equity:
Preferred stock (par value $0.001 per share, 2,500 authorized, 10 shares issued and outstanding at June 30, 2020 and December 31, 2019)	50	50
Common stock (par value $0.001 per share, 50,000 authorized, 12,659 and 12,446 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively)	13	12
Additional paid-in capital	192,298	188,103
Accumulated deficit	(155,084)	(138,715)
Total shareholders’ equity	37,277	49,450
Total liabilities and shareholders’ equity	$ 49,590	$ 57,388