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4. Mortgage-backed Securities: Mortgage backed securities pledged as collateral policy (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Details
Mortgage backed securities pledged as collateral amortized cost	$ 53	$ 69
Mortgage backed securities pledged as collateral fair value	$ 55	$ 71

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- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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

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- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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

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- Details

Name:	us-gaap_TextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration