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9. Notes Payable to Bank (Tables)
 12 Months Ended
Dec. 31, 2017
Debt Disclosure [Abstract]  
Summary of notes payable to bank
    December 31,     December 31,  
    2017     2016  
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   $ 98,863     $ 76,350  
                 
                 
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     93,702       90,967  
Total notes payable to the bank   $ 192,565     $ 167,317