Quarterly report pursuant to Section 13 or 15(d)

Royalty and licensing income (Details)

v2.4.1.9
Royalty and licensing income (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2015
Jan. 31, 2014
Royalty and licensing income (Details) [Line Items]        
Patent Expiration Date     Apr. 24, 2018  
Life Sciences [Member]        
Royalty and licensing income (Details) [Line Items]        
Royalty Revenue $ 0.6us-gaap_RoyaltyRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= enz_LifeSciencesMember
$ 1.0us-gaap_RoyaltyRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= enz_LifeSciencesMember
$ 1.6us-gaap_RoyaltyRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= enz_LifeSciencesMember
$ 2.6us-gaap_RoyaltyRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= enz_LifeSciencesMember