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Note 6: Investment Securities: Schedule of Gross Unrealized Losses and Estimated Fair Value of Investments (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
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Total Unrealized Losses And Estimated Fair Value |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 110,223 | $ 198,302
Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses | (3,548) | (6,554)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 65,295 | 39,255
Available for sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses | (848) | (395)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 175,518 | 237,557
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses | (4,396) | (6,949)
US Government Agencies Debt Securities |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 20,000 | 20,000
Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses | (2,026) | (2,745)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 20,000 | 20,000
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses | (2,026) | (2,745)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 61,365 | 127,901
Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses | (878) | (1,871)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 65,295 | 39,255
Available for sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses | (848) | (395)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 126,660 | 167,156
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses | (1,726) | (2,266)
US States and Political Subdivisions Debt Securities |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 28,858 | 50,401
Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses | (644) | (1,938)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 28,858 | 50,401
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses | $ (644) | $ (1,938)

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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References No definition available. + Details
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- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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