XML 70 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accounting Policies:Asset Retirement Obligations (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Asset Retirement Obligation Disclosure [Abstract]    
Asset Retirement Obligation $ 2.1 $ 1.1