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Financial Derivative Instruments (Tables)
 12 Months Ended
Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments
The details of the interest rate swap agreements are as follows:
 
 
 
 
 
As of December 31,
 
 
 
 
 
2017
2016
Notional Amount
Effective Date
Maturity Date
Variable Index Received
Fixed Rate Paid
Fair Value(1)
Fair Value(1)
$
30,000,000

June 28, 2016
June 28, 2021
1-Month USD LIBOR
0.94
%
$
1,154,000

$
1,049,000

$
20,000,000

June 27, 2016
June 27, 2021
1-Month USD LIBOR
0.89
%
$
801,000

741,000

$
50,000,000

 
 
 
 
$
1,955,000

$
1,790,000

(1) Presented within other assets in the consolidated balance sheet.