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Business Description And Significant Accounting Policies: Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Roll Forward]      
Intangible assets, net, beginning balance $ 13,266 $ 14,337 $ 7,559
Intangible assets, additions 0 0 7,602
Intangible assets, amortization expense (1,322) (1,071) (824)
Intangible assets, net, ending balance 11,944 $ 13,266 $ 14,337
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
Future Amortization Expense, Year One 1,300    
Future Amortization Expense, Year Two 1,300    
Future Amortization Expense, Year Three 1,300    
Future Amortization Expense, Year Four 1,300    
Future Amortization Expense, Year Five $ 1,300    
Minimum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Useful Life 2 years    
Maximum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Useful Life 40 years