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Note 4: Value of Business Acquired (Details) (USD $) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Details |  |  |  |  |  |  |  |
Value of business acquired - net amortization charged to income | $ 684,000 | $ 756,000 | $ 822,000 | $ 887,000 | $ 1,146,000 | $ 1,340,272 | $ 1,215,158 | $ 1,145,200

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