5. Investment Securities (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Details
Held To Maturity Securities Pledged As Collateral	$ 4,502,000	$ 4,297,000

Represents the monetary amount of Held To Maturity Securities Pledged As Collateral, as of the indicated date.

No definition available.

Name:	fil_HeldToMaturitySecuritiesPledgedAsCollateral1
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant