8. Income Taxes (Details - Deferred tax assets) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Net operating loss and capital loss carryforwards and credits	$ 113,561	$ 112,280
Unrealized loss on investments held at fair value	0	538
Stock compensation	497	358
Fixed assets and intangibles	677	1,316
Basis of investments in affiliates	254	300
Accrued liabilities and other	762	631
State taxes	15	25
Total deferred tax assets	115,766	115,448
Valuation allowance	(76,969)	(115,077)
Total deferred tax assets, net of valuation allowance	38,797	371
Deferred tax liabilities:
ROU Asset	(330)	(347)
Unrealized loss on investments held at fair value	(38,374)	0
Other	(93)	(24)
Total deferred tax liabilities	(38,797)	(371)
Net deferred tax assets (liabilities)	$ 0	$ 0