XML 52 R40.htm IDEA: XBRL DOCUMENT v3.21.1
Income Taxes (Narrative) (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
item
Mar. 31, 2020
Dec. 31, 2020
USD ($)
Income Taxes [Abstract]      
Federal tax rate 21.00% 21.00%  
Effective tax rate 21.10% 21.40%  
Capital loss carryforward $ 0   $ 0
Operating loss carryforward $ 0   $ 0
Number of open exams | item 0