Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Tables)

v3.19.1
Marketable Securities (Tables)
3 Months Ended
Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Schedule of Marketable Securities
Marketable securities at March 31, 2019 consisted of the following:
 
Marketable Securities
 
Amortized Cost
 
 
Unrealized

Gains
 
 
Unrealized

Losses
 
 
Fair Value
 
Current:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt
 
$
13,265,522
 
 
$
732
 
 
$
(78
)
 
$
13,266,176
 
U.S. Treasury securities
 
 
3,001,071
 
 
 
382
 
 
 
 
 
 
3,001,453
 
 
 
$
16,266,593
 
 
$
1,114
 
 
$
(78
)
 
$
16,267,629
 
Marketable securities at December 31, 2018 consisted of the following:
 
Marketable Securities
 
Amortized Cost
 
 
Unrealized

Gains
 
 
Unrealized

Losses
 
 
Fair Value
 
Current:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt
 
$
19,179,530
 
 
$
314
 
 
$
(31,160
)
 
$
19,148,684
 
U.S. Treasury securities
 
 
2,982,706
 
 
 
546
 
 
 
 
 
 
2,983,252
 
 
 
$
22,162,236
 
 
$
860
 
 
$
(31,160
)
 
$
22,131,936