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Apr 02, 2018 10-K Annual report htmlhtml   xbrlxbrl  
Apr 01, 2019 10-K Annual report htmlhtml   xbrlxbrl  
Apr 14, 2020 10-K Annual report htmlhtml   xbrlxbrl  
Mar 31, 2021 10-K Annual report htmlhtml   xbrlxbrl  
Jan 08, 2013 10-K/A Annual report (Amendment) htmlhtml   xbrlxbrl  
Jun 21, 2013 10-K/A Annual report (Amendment) htmlhtml   xbrlxbrl  
Aug 22, 2013 10-K/A Annual report (Amendment) htmlhtml   xbrlxbrl  
Apr 14, 2014 10-K/A Annual report (Amendment) htmlhtml   xbrlxbrl  
Apr 01, 2019 10-K/A Annual report (Amendment) htmlhtml   xbrlxbrl  
Feb 11, 2011 5 Annual statement of changes in beneficial ownership of securities htmlhtml