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Note 6: Investment Securities: Schedule of Gross Unrealized and Fair Value Aggregated by Investment Category (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Less than 12 months | Fair Value |  |
Collateralized mortgage obligations |  | $ 3,760
Mortgage-backed securities | 10,127 | 61,720
States and political subdivisions |  | 6,436
Total securities by investment category |  | 71,916
Less than 12 months | Unrealized Losses |  |
Collateralized mortgage obligations |  | (110)
Mortgage-backed securities | (40) | (365)
States and political subdivisions |  | (44)
Total securities by investment category |  | (519)
12 Months or More | Fair Value |  |
Collateralized mortgage obligations | 969 | 1,460
Mortgage-backed securities |  | 91,824
States and political subdivisions |  | 7,381
Total securities by investment category |  | 100,665
12 Months or More | Unrealized Losses |  |
Collateralized mortgage obligations | (305) | (270)
Mortgage-backed securities |  | (437)
States and political subdivisions |  | (859)
Total securities by investment category |  | (1,566)
Total Investments | Fair Value |  |
Collateralized mortgage obligations | 969 | 5,220
Mortgage-backed securities | 10,127 | 153,544
States and political subdivisions |  | 13,817
Total securities by investment category |  | 172,581
Total Investments | Unrealized Losses |  |
Collateralized mortgage obligations | (305) | (380)
Mortgage-backed securities | (40) | (802)
States and political subdivisions |  | (903)
Total securities by investment category |  | $ (2,085)

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