XML 36 R25.htm IDEA: XBRL DOCUMENT v3.8.0.1
CASH AND EQUIVALENTS AND MARKETABLE SECURITIES (Tables)
 3 Months Ended
Mar. 31, 2018
Cash and Equivalents and Marketable Securities Disclosure [Abstract]  
Cash Cash Equivalents and Marketable Securities Table
Investments in available-for-sale marketable debt securities are as follows at March 31, 2018 and December 30, 2017
 
Amortized Cost

Unrealized Losses

Fair Value
 
2018

2017

2018

2017

2018

2017
U.S. government and agency backed securities
$
29,821,596


$
35,014,593


$
(403,318
)

$
(288,782
)

$
29,418,278


$
34,725,811

Corporate debt
7,270,853

 
8,988,608

 
(15,426
)
 
(7,702
)
 
7,255,427

 
8,980,906

Certificates of deposit
200,000


201,000


(110
)

(260
)

199,890


200,740

Total
$
37,292,449

 
$
44,204,201

 
$
(418,854
)
 
$
(296,744
)
 
$
36,873,595

 
$
43,907,457
Marketable Debt Securities
The contractual maturity of the Company’s marketable debt securities is as follows at March 31, 2018:
 
Less than
One year
 
One to
Five years
 
Greater than
Five years
 
Total
U.S. government and agency backed securities
$
16,970,998

 
$
11,498,340

 
$
948,940

 
$
29,418,278

Corporate debt
1,041,720

 
6,213,707

 
—

 
7,255,427

Certificates of deposit
199,890

 
—

 
—

 
199,890

Total
$
18,212,608

 
$
17,712,047

 
$
948,940

 
$
36,873,595