Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.19.3
Document and Entity Information - shares
6 Months Ended
Sep. 30, 2019
Oct. 25, 2019
Entity Registrant Name WESTELL TECHNOLOGIES INC  
Entity Central Index Key 0001002135  
Current Fiscal Year End Date --03-31  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q2  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business true  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Class A Common Stock    
Entity Common Stock, Shares Outstanding   12,218,890
Class B Common Stock    
Entity Common Stock, Shares Outstanding   3,484,287