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9. Notes Payable to Bank (Tables)
 12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Summary of Notes Payable to Bank
    2020     2019  
Promissory note payable to First Security Bank of Missoula,            
bearing interest at 3.150%, payable on demand, collateralized            
by a lien on Certificate of Deposit   $ 99,999     $ 97,067  
                 
Promissory note payable to First Security Bank of Missoula,                
bearing interest at 3.150%, payable on demand, collateralized                
by a lien on Certificate of Deposit     1       99,999  
                 
Total notes payable to the bank   $ 100,000     $ 197,066