XML 21 R1.htm IDEA: XBRL DOCUMENT v3.5.0.2
Document and Entity Information
 12 Months Ended
Mar. 31, 2016
shares
Document and Entity Information [Abstract]  
Entity Registrant Name DESWELL INDUSTRIES INC
Entity Central Index Key 0000946936
Trading Symbol dswl
Entity Current Reporting Status Yes
Current Fiscal Year End Date --03-31
Entity Filer Category Non-accelerated Filer
Entity Well-Known Seasoned Issuer No
Entity Common Stock, Shares Outstanding 16,056,239
Document Type 20-F
Document Period End Date Mar. 31, 2016
Amendment Flag false
Document Fiscal Year Focus 2016
Document Fiscal Period Focus FY