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Marketable Investment Securities
 12 Months Ended
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.