Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - shares
3 Months Ended
Jun. 30, 2018
Jul. 27, 2018
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Entity Registrant Name WESTELL TECHNOLOGIES INC  
Entity Central Index Key 0001002135  
Current Fiscal Year End Date --03-31  
Entity Filer Category Smaller Reporting Company  
Class A Common Stock    
Entity Common Stock, Shares Outstanding   12,132,053
Class B Common Stock    
Entity Common Stock, Shares Outstanding   3,484,287