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RETIREMENT AND POSTRETIREMENT PLANS (Tables)
9 Months Ended
Sep. 30, 2017
RETIREMENT AND POSTRETIREMENT PLANS [Abstract]  
Schedule of Net Benefit Costs
Net expenses associated with these plans were comprised of the following components:

  
Three Months Ended September 30,
 
  
2017
  
2016
 
  
BMP, Employee
and Outside
Director
Retirement Plans
  
Postretirement
Plan
  
BMP, Employee
and Outside
Director
Retirement Plans
  
Postretirement
Plan
 
             
Service cost
 
$
-
  
$
-
  
$
-
  
$
-
 
Interest cost
  
329
   
14
   
343
   
16
 
Expected return on assets
  
(395
)
  
-
   
(383
)
  
-
 
Unrecognized past service liability
  
-
   
(2
)
  
-
   
(2
)
Amortization of unrealized loss (gain)
  
358
   
(1
)
  
428
   
(1
)
Net periodic cost
 
$
292
  
$
11
  
$
388
  
$
13
 

  
Nine Months Ended September 30,
 
  
2017
  
2016
 
  
BMP, Employee
and Outside
Director
Retirement Plans
  
Postretirement
Plan
  
BMP, Employee
and Outside
Director
Retirement Plans
  
Postretirement
Plan
 
             
Service cost
 
$
-
  
$
-
  
$
-
  
$
-
 
Interest cost
  
987
   
42
   
1,028
   
47
 
Expected return on assets
  
(1,185
)
  
-
   
(1,149
)
  
-
 
Unrecognized past service liability
  
-
   
(6
)
  
-
   
(6
)
Amortization of unrealized loss (gain)
  
1,076
   
(3
)
  
1,284
   
(3
)
Net periodic cost
 
$
878
  
$
33
  
$
1,163
  
$
38