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CASH AND EQUIVALENTS AND MARKETABLE SECURITIES (Tables)
 6 Months Ended
Jun. 25, 2016
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 June 25, 2016 and December 26, 2015:
 
Amortized Cost

Unrealized Gains

Unrealized Losses

Fair Value
 
2016

2015

2016

2015

2016

2015

2016

2015
U.S. government and agency backed securities
$
44,742,363


$
46,586,224


$
118,565


$
—


$
—


$
(121,561
)

$
44,860,928


$
46,464,663

Corporate debt and certificates of deposit
20,914,514


14,534,247


—


—


(65,846
)

(56,019
)

20,848,668


14,478,228

Total
$
65,656,877

 
$
61,120,471

 
$
118,565

 
$
—

 
$
(65,846
)
 
$
(177,580
)
 
$
65,709,596

 
$
60,942,891
Marketable Debt Securities
The contractual maturity of the Company’s marketable debt securities is as follows at June 25, 2016:
 
Less than
One year
 
One to
Five years
 
Greater than
Five years
 
Total
U.S. government and agency backed securities
$
17,582,380

 
$
20,207,958

 
$
7,070,590

 
$
44,860,928

Corporate debt and certificates of deposit
16,448,550

 
4,400,118

 
—

 
20,848,668

Total
$
34,030,930

 
$
24,608,076

 
$
7,070,590

 
$
65,709,596