8. Income Taxes (Details - Deferred tax assets) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss and capital loss carryforwards and credits	$ 112,280	$ 104,862
Unrealized loss on investments held at fair value	538	2,455
Stock compensation	358	1,365
Fixed assets and intangibles	1,316	3,330
Basis of investments in affiliates	300	286
Accrued liabilities and other	631	208
State taxes	25	26
Total deferred tax assets	115,448	112,532
Valuation allowance	(115,077)	(112,514)
Total deferred tax assets, net of valuation allowance	371	18
Deferred tax liabilities:
ROU Asset	(347)	0
Other	(24)	(18)
Total deferred tax liabilities	(371)	(18)
Net deferred tax assets (liabilities)	$ 0	$ 0