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Investments (Narrative) (Details) (USD $) | 3 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013
Schedule of Available-for-sale Securities [Line Items] |  |
Proceeds from sale of investments | $ 554,609 | $ 1,170,271
Gross realized gains | 19,651 | 66,218
Gross realized losses | $ 14,843 | $ 1,882
Corporate Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Number Of Investment Securities | 3 |

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