12) Mortgage Servicing Rights: Schedule of Mortgage Servicing Rights (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Details
Balance before valuation allowance at beginning of year	$ 21,376,937	$ 18,872,362
MSRs proceeds from loan sales	997,497	6,085,352
Amortization	(820,384)	(3,580,777)
Balance before valuation allowance at year end	21,554,050	21,376,937
Mortgage servicing rights, net	21,554,050	21,376,937
Estimated fair value of MSRs at end of period	$ 30,086,162	$ 27,427,174

Represents the monetary amount of Amortization, as of the indicated date.

No definition available.

Represents the monetary amount of Balance before valuation allowance at beginning of year, as of the indicated date.

No definition available.

Name:	fil_BalanceBeforeValuationAllowanceAtBeginningOfYear
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the monetary amount of Balance before valuation allowance at year end, as of the indicated date.

No definition available.

Name:	fil_BalanceBeforeValuationAllowanceAtYearEnd
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the monetary amount of Estimated fair value of MSRs at end of period, as of the indicated date.

No definition available.

Name:	fil_EstimatedFairValueOfMsrsAtEndOfPeriod
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the monetary amount of Mortgage servicing rights, net, as of the indicated date.

No definition available.

Name:	fil_MortgageServicingRightsNet
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the monetary amount of MSRs proceeds from loan sales, as of the indicated date.

No definition available.

Name:	fil_MsrsProceedsFromLoanSales
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.