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Investment in Available-for-Sale Securities
 6 Months Ended
Jun. 30, 2014
Available-For-Sale Securities [Abstract]  
Available For Sale Securities Disclosure [Text Block]
4.  Investment in Available-for-Sale Securities
 
The following is a summary of the Company’s investments in available-for-sale securities as of June 30, 2014 (unaudited):
 
 
 
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair Value
 
U.S. federal agency securities
 
$
90,094
 
$
125
 
$
(72)
 
$
90,147
 
Municipal securities
 
 
598,696
 
 
1,457
 
 
(1,094)
 
 
599,059
 
Certificates of deposit
 
 
1,405,726
 
 
19,810
 
 
(11,799)
 
 
1,413,737
 
Corporate debt securities
 
 
38,419
 
 
455
 
 
-
 
 
38,874
 
 
 
$
2,132,935
 
$
21,847
 
$
(12,965)
 
$
2,141,817
 
 
The following is a summary of the Company’s investments in available-for-sale securities as of December 31, 2013:  
 
 
 
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair Value
 
U.S. federal agency securities
 
$
90,549
 
$
93
 
$
(277)
 
$
90,365
 
Municipal securities
 
 
735,826
 
 
2,175
 
 
(6)
 
 
737,995
 
Certificates of deposit
 
 
1,539,377
 
 
12,281
 
 
(19,398)
 
 
1,532,260
 
Corporate debt securities
 
 
174,738
 
 
275
 
 
(9,091)
 
 
165,922
 
 
 
$
2,540,490
 
$
14,824
 
$
(28,772)
 
$
2,526,542
 
 
The Company’s investment portfolio had a net realized loss of $11,888 and a net realized gain of $14,118 for the six months ended June 30, 2014 and 2013, respectively.  The Company’s investment portfolio had a net realized loss of $3,786 and a net realized gain of $25,104 for the three months ended June 30, 2014 and 2013, respectively. 
 
The cost and fair value of investments in fixed income available-for-sale debt securities, by contractual maturity, as of June 30, 2014 (unaudited), are as follows:
 
 
 
Cost
 
Fair 
Value
 
Due within one year
 
$
946,148
 
$
944,989
 
Due after one year through three years
 
 
666,000
 
 
674,647
 
Due after three years
 
 
520,787
 
 
522,181
 
 
 
$
2,132,935
 
$
2,141,817
 
 
Expected maturities will differ from contractual maturities because the issuers of certain debt securities have the right to call or prepay their obligations without any penalties.  The Company has classified the entire fair value of its investment in available-for-sale debt securities as current assets in the accompanying balance sheets.