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Contract Assets (Tables)
9 Months Ended
Dec. 31, 2019
Contract Assets [Abstract]  
Contract Assets
Contract assets are comprised of the following:

  
December 31, 2019
  
March 31, 2019
 
Short-term contract assets
      
Cores expected to be returned by customers
 
$
14,473,000
  
$
14,671,000
 
Upfront payments to customers
  
3,254,000
   
3,101,000
 
Core premiums paid to customers
  
4,889,000
   
4,411,000
 
Total short-term contract assets
 
$
22,616,000
  
$
22,183,000
 
         
Long-term contract assets
        
Remanufactured cores held at customers' locations
 
$
202,537,000
  
$
196,914,000
 
Upfront payments to customers
  
463,000
   
2,775,000
 
Core premiums paid to customers
  
16,000,000
   
16,618,000
 
Long-term core inventory deposits
  
5,569,000
   
5,569,000
 
Total long-term contract assets
 
$
224,569,000
  
$
221,876,000