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PENSION BENEFIT PLANS (Tables)
6 Months Ended
Sep. 30, 2017
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension Costs of Noncontributory Defined Benefit Pension Plans
The following sets forth the components of the Company's net periodic pension cost of the noncontributory defined benefit pension plans for the three and six months ended September 30, 2017 and 2016 (in thousands):
 
Three Months Ended
 
Six Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
Service cost
$
70

 
$
81

 
$
141

 
$
165

Interest cost
136

 
157

 
273

 
321

    Net periodic pension cost
$
206

 
$
238

 
$
414

 
$
486