XML 97 R58.htm IDEA: XBRL DOCUMENT v3.20.1
9. Income Taxes (Details - Tax rate effect) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Expense at federal tax rate $ 1,924 $ 3,928 $ 11,225
State taxes, net of federal income tax effect 1,027 1,718 1,831
Stock-based compensation 169 238 682
Non-deductible expenses 856 824 171
Effect of change in tax rate 0 0 15,117
Accounting method change 0 (2,100) 0
Other (220) (767) (720)
Income tax expense $ 3,756 $ 3,841 $ 28,306