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Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Schedule of Cost, Fair Value and Maturities of Short Term Investments

A summary of the cost, fair value and maturities of the Company’s short-term investments is as follows:

 

   June 30, 2019   December 31, 2018 
   Cost   Fair Value   Cost   Fair Value 
Short-term investments                    
Corporate debt securities  $15,607,812   $15,702,388   $14,228,126   $14,257,998 
Total  $15,607,812   $15,702,388   $14,228,126   $14,257,998 

 

 

   June 30, 2019   December 31, 2018 
   Cost   Fair Value   Cost   Fair Value 
Short-term investment maturities                    
Within 3 months  $9,821,406   $9,897,504   $5,383,488   $5,393,743 
Between 3-12 months   5,786,406    5,804,884    8,844,638    8,864,255 
Total  $15,607,812   $15,702,388   $14,228,126   $14,257,998 
Schedule of Unrealized Losses and Fair Value of Investment Securities

The following table shows the Company’s investment securities gross unrealized gains (losses) and fair value by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2019 and December 31, 2018. The Company has reviewed individual securities to determine whether a decline in fair value below the amortizable cost basis is other than temporary.

 

   June 30, 2019   December 31, 2018 
Available for sale securities (all unrealized holding gains and losses are less than 12 months at date of measurement)  Fair Value  

Unrealized

Holding

Gains

(Losses)

   Fair Value  

Unrealized

Holding

Gains

(Losses)

 
                 
Investments with unrealized gains  $14,395,809   $95,013   $7,515,676   $38,068 
Investments with unrealized losses   1,306,579    (437)   6,742,322    (8,196)
Total  $15,702,388   $94,576   $14,257,998   $29,872 
Schedule of Investment Income

Investment income, which includes net realized losses on sales of available for sale securities and investment income interest and dividends, is summarized as follows:

 

  

Three Months Ended

June 30,

 
   2019   2018 
Interest and dividends accrued and paid  $143,633   $69,559 
Realized gains   969    3,902 
Investment income, net  $144,602   $73,461 

 

  

Six Months Ended

June 30,

 
   2019   2018 
Interest and dividends accrued and paid  $248,043   $138,848 
Realized gains   10,350    8,337 
Investment income, net  $258,393   $147,185