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Marketable Investment Securities | 12 Months Ended
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Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract] |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] |
| (3) | Marketable Investment Securities
The Company has classified its marketable investment securities as available-for-sale securities. These securities are carried at fair value with unrealized holding gains and losses, net of the related tax effect, included in accumulated other comprehensive loss in stockholders’ equity until realized. Gains and losses on investment security transactions are reported on the specific-identification method. Dividend income is recognized on the ex-dividend date and interest income is recognized on an accrual basis. The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at December 31, 2015 were as follows:
|  | Amortized Cost |  |  | Gross unrealized holding gains |  |  | Gross unrealized holding losses |  |  | Aggregate fair value |
Government notes |  | $ | 802,862 |  |  | $ | - |  |  | $ | (750 | ) |  | $ | 802,112 |
Corporate bonds and notes |  |  | 24,005,458 |  |  |  | 594 |  |  |  | (32,744 | ) |  |  | 23,973,308 |
|  | $ | 24,808,320 |  |  | $ | 594 |  |  | $ | (33,494 | ) |  | $ | 24,775,420 |
There were no marketable investment securities held as of December 31, 2014. Maturities of debt securities classified as available-for-sale securities at December 31, 2015 are as follows:
|  | Amortized Cost |  |  | Aggregate fair value |
Due within one year |  | $ | 24,407,539 |  |  | $ | 24,375,168 |
Due after one year through five years |  |  | 400,781 |  |  |  | 400,252 |
Due after five years |  |  | - |  |  |  | - |
|  | $ | 24,808,320 |  |  | $ | 24,775,420 |
There were no sales of marketable investment securities during the year ended December 31, 2015 and therefore no realized gains or losses. Additionally, $800,000 of marketable investment securities matured during the year ended December 31, 2015. The Company determined there were no other-than-temporary impairments for the year ended December 31, 2015.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 7: 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=27724398&loc=d3e27161-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + Details
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