SHAREHOLDERS' EQUITY AND REGULATORY CAPITAL REQUIREMENTS: Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Shareholders Equity And Regulatory Capital Requirements [Abstract]
Total capital to risk weighted assets actual amount	$ 112,421	$ 105,277
Total capital to risk weighted assets actual ratio	14.06%	16.07%
Total capital to risk weighted assets for capital adequacy purposes amount	$ 63,955	$ 52,405
Total capital to risk weighted assets for capital adequacy purposes ratio	8.00%	8.00%
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action amount	$ 79,944	$ 65,507
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action ratio	10.00%	10.00%
Tier 1 to risk weighted assets actual amount	$ 102,411	$ 97,046
Tier 1 to risk weighted assets actual ratio	12.81%	14.81%
Tier 1 to risk weighted assets for capital adequacy purposes amount	$ 47,966	$ 39,304
Tier 1to risk weighted assets for capital adequacy purposes ratio	6.00%	6.00%
Tier 1 to risk weighted assets well capitalized under prompt corrective action amount	$ 63,955	$ 52,405
Tier 1 to risk weighted assets well capitalized under prompt corrective action ratio	8.00%	8.00%
Common equity Tier 1 capital to risk weighted assets actual amount	$ 102,411	$ 97,046
Common equity Tier 1 capital to risk weighted assets actual ratio	12.81%	14.81%
Common equity Tier 1 to risk weighted assets for capital adequacy purposes amount	$ 35,975	$ 29,478
Common equity Tier 1 to risk weighted assets for capital adequacy purposes ratio	4.50%	4.50%
Common equity Tier 1 capital well capitalized under prompt corrective action amount	$ 51,963	$ 42,579
Common equity Tier 1 capital well capitalized under prompt corrective action ratio	6.50%	6.50%
Tier 1 leverage to adjusted tangible assets actual amount	$ 102,411	$ 97,046
Tier 1 leverage to adjusted tangible assets actual ratio	10.21%	11.18%
Tier 1 leverage capital assets for capital adequacy purposes amount	$ 40,110	$ 34,718
Tier 1 leverage capital assets for capital adequacy purposes ratio	4.00%	4.00%
Tier 1 leverage capital assets well capitalized under prompt corrective action amount	$ 50,138	$ 43,397
Tier1 leverage capital assets well capitalized under prompt corrective action ratio	5.00%	5.00%
Tangible capital to tangible assets actual amount	$ 102,411	$ 97,046
Tangible capital to tangible assets actual ratio	10.21%	11.18%
Tangible capital to tangible assets for capital adequacy purposes amount	$ 15,041	$ 13,019
Tangible capital to tangible assets for capital adequacy purposes ratio	1.50%	1.50%

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Represents the monetary value of Common Equity Tier 1 Capital for adequacy, as on the indicated date.

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Represents the ratio of common equity Tier 1 Capital for adequacy to Risk-weighted Assets, as of the indicated date.

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Represents the monetary value of Common Equity Tier 1 Capital for adequacy, as on the indicated date.

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Represents the ratio of common equity Tier 1 Capital to be well capitalized, to Risk-weighted Assets, as of the indicated date.

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Represents the ration of common equity Tier 1 Capital to Risk-weighted Assets, as of the indicated date.

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The amount of total capital as defined in the regulations.

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Tangible capital as defined in the regulations (generally includes outstanding stock plus retained earnings) for banking institutions subject to Office of Thrift Supervision (OTS) capital requirements.

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The minimum amount of tangible capital required under the regulatory framework for prompt corrective action.

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The minimum amount of Tangible Capital divided by tangible assets (Tangible Capital Ratio) as defined in the regulations.

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Tangible Capital divided by Tangible assets as defined in the regulations.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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