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12) Mortgage Servicing Rights: Summary of Unpaid Principal Balances of the Servicing Portfolio (Details) - USD ($) | Jun. 30, 2018 | Dec. 31, 2017
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Details |  |
Servicing Unpaid Principal Balance | $ 2,974,279,299 | $ 2,924,868,843

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- Definition Represents the monetary amount of ServicingUnpaidPrincipalBalance, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_TextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration