Note 3: Securities: Contractual Obligation, Fiscal Year Maturity Schedule (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Details
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 4,762
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	4,759
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	20,065
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	19,944
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	23,277
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	23,243
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	20,148
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	19,867
Debt and equity securities amortized cost	68,252
Debt and equity securities fair value	67,813
Mortgage-backed securities GSE residential amortized cost	80,313
Mortgage-backed securities GSE residential fair value	78,314
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	148,565
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	$ 146,127

Represents the monetary amount of Debt and equity securities amortized cost, as of the indicated date.

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Represents the monetary amount of Debt and equity securities fair value, as of the indicated date.

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Represents the monetary amount of Mortgage-backed securities GSE residential amortized cost, as of the indicated date.

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Represents the monetary amount of Mortgage-backed securities GSE residential fair value, as of the indicated date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing after the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing after the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of available-for-sale debt securities at cost, net of adjustments, that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

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