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Consolidated Statements Of Cash Flows (Parenthetical) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Statement of Cash Flows [Abstract] |  |  |
Non cash net unrealized gain on investments, deferred tax provision | $ (1,288,951) | $ (730,555) | $ 969,710
Adjustments to postretirement benefits obligation, net of deferred tax benefit (provision) | $ 26,252 | $ (28,192) | $ (39,130)

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