Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v2.4.0.8
Document and Entity Information
3 Months Ended
Jun. 30, 2014
Aug. 01, 2014
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2014  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q1  
Entity Registrant Name GRAHAM CORP  
Entity Central Index Key 0000716314  
Current Fiscal Year End Date --03-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   10,118,906