Employee Stock Ownership Plan: Employee Stock Ownership Plan (ESOP) Disclosures (Details) - USD ($)	12 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Details
ESOP shares, fair value of unreleased shares	$ 207,000	$ 332,500	$ 338,000	$ 325,000
ESOP shares, unreleased	49,266	73,899	98,532	123,165
ESOP shares, allocated and released	913,318	888,685	864,052	839,419
ESOP shares	962,584	962,584	962,584	962,584
Unreleased ESOP shares allocated	(24,633)	(24,633)	(24,633)
Allocated and Released ESOP shares allocation	24,633	24,633	24,633

The number of allocated and released ESOP, as of the date indicated.

No definition available.

Name:	fil_AllocatedAndReleasedEsopSharesAllocation
Namespace Prefix:	fil_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The number of allocated, released and unreleased ESOP shares, as of the date indicated.

No definition available.

The number of allocated and released ESOP, as of the date indicated.

No definition available.

Name:	fil_EsopSharesAllocatedAndReleased
Namespace Prefix:	fil_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The fair value of unreleased ESOP shares, as of the indicated date.

No definition available.

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

The number of unreleased ESOP shares, as of the date indicated.

No definition available.

The number of unreleased ESOP shares, as of the date indicated.

No definition available.

Name:	fil_UnreleaseEsopSharesAllocated
Namespace Prefix:	fil_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

No definition available.