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Interest Rate Swap Agreements (Tables)
6 Months Ended
Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of locations and amounts of (gains) losses recognized in income
    

Three months ended

September 30,

    

Six months ended

September 30,

 
     (In thousands)      (In thousands)  
         2016              2015              2016              2015      

Periodic change in fair value of interest rate swap agreements

   $ (121    $ 79       $ (103    $ 123   

Periodic settlement differentials included in interest expense

     55         95         118         189   
  

 

 

    

 

 

    

 

 

    

 

 

 

(Gain) loss recognized in income

   $ (66    $ 174       $ 15       $ 312   
  

 

 

    

 

 

    

 

 

    

 

 

 
Schedule of variable rates received and average fixed rates paid under the swap agreements
     Three months ended
September 30,
    Six months ended
September 30,
 
     2016     2015     2016     2015  

Variable rate received

     0.50     0.19     0.47     0.18

Fixed rate paid

     0.94     0.94     0.94     0.94