Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 32,301	$ 33,598
Marketable securities	10,724	18,944
Trade accounts receivable, net	4,826	5,427
Other current assets	4,457	6,172
Total current assets	52,308	64,141
Property and equipment, net	2,024	2,390
Intangibles, net	32,396	33,170
Goodwill	8,435	8,229
Lease right of use assets	4,554	4,720
Other assets	1,309	1,127
Total assets	101,026	113,777
Current liabilities:
Accounts payable and other accrued liabilities	5,059	5,989
Deferred revenue, current	3,264	4,145
Total current liabilities	8,323	10,134
Lease liabilities, long-term	5,901	5,977
Other long-term liabilities	143	76
Total liabilities	14,367	16,187
Commitments and contingencies (Note 16)
Shareholders’ equity:
Preferred stock (par value $0.001 per share, 2,500 authorized, 10 shares issued and outstanding at March 31, 2023 and December 31, 2022)	50	50
Common stock (par value $0.001 per share, 50,000 authorized, 20,271 and 20,260 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively)	20	20
Additional paid-in capital	369,925	367,692
Accumulated deficit	(279,849)	(265,809)
Accumulated other comprehensive loss	(3,487)	(4,363)
Total shareholders’ equity	86,659	97,590
Total liabilities and shareholders’ equity	$ 101,026	$ 113,777