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Consolidated Statements Of Cash Flows (Parenthetical) (USD $) | 6 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011
Consolidated Statements Of Cash Flows [Abstract] |  |
Non cash net unrealized gain on investments, deferred tax provision | $ (441,460) | $ (557,803)

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- Definition The amount of deferred tax provision resulting from unrealized gains and losses during the period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration