XML 45 R29.htm IDEA: XBRL DOCUMENT v3.6.0.2
Investments (Tables)
 12 Months Ended
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]  
Summary of investments
The following is a summary of available-for-sale securities as of December 31, 2016 and 2015:
 
 
 
 
As of December 31, 2016
 
Contractual
Maturity (in years)
Cost
 
Gross Unrealized
Gains
 
Gross Unrealized
Losses
 
Fair Market Value
Mutual funds
---
 
$
60,883,065

 
$
94,374

 
$
(387,693
)
 
$
60,589,746

US corporate debt securities
Less than 2
 
25,098,122

 
6,853

 
(65,309
)
 
25,039,666

Investment in affiliated entity (PLS)
---
 
—

 
3,777,510

 
—

 
3,777,510

Total investments
 
 
$
85,981,187

 
$
3,878,737

 
$
(453,002
)
 
$
89,406,922

 
 
 
As of December 31, 2015
 
Contractual
Maturity (in years)
Cost
 
Gross Unrealized
Gains
 
Gross Unrealized
Losses
 
Fair Market Value
Mutual funds
---
 
$
78,571,294

 
$
435

 
$
(185,737
)
 
$
78,385,992

US corporate debt securities

Less than 2
 
26,923,855

 
—

 
(54,452
)
 
26,869,403

Municipal bonds
Less than 1
 
101,936

 
—

 
(54
)
 
101,882

Investment in affiliated entity (PLS)
---
 
—

 
5,045,915

 
—

 
5,045,915

Total investments
 
 
$
105,597,085

 
$
5,046,350

 
$
(240,243
)
 
$
110,403,192