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Investments In Securities (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 USD ($) security | Sep. 30, 2015 USD ($) | Dec. 31, 2015 USD ($) security
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |  |
Available-for-sale securities | $ 7,139,124 |  | $ 17,129,467
Unrealized losses | $ 115,246 |  | $ 224,711
Number of securities with unrealized losses | security | 10 |  | 30
Other-than-temporary impairment charges | $ 233,941 | $ 668,904 |
Auction rate security bond par value |  |  | $ 1,000,000
Percentage of auction rate security guaranteed |  |  | 97.00%
Minimum |  |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |  |
Percentage Of Carrying Value Of Auction Rate Securities |  |  | 1.00%
Maximum |  |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |  |
Percentage Of Carrying Value Of Auction Rate Securities |  |  | 4.00%

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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + 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=73527792&loc=d3e27290-111563 + Details
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- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 + Details
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