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12. Stockholders' Equity: Common Stock Purchase Warrant Transactions (Details) - shares
3 Months Ended
Mar. 31, 2021
Dec. 31, 2019
Details    
Class of Warrant or Right, Outstanding 5,975,027 12,900,123
Warrants issued 5,600,027  
Warrants Expired (10,816,789)  
Warrants excised (1,708,334)