Subsequent Event	6 Months Ended
Jan. 31, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 12 – Subsequent Event Enzo Biochem, Inc. (the "Company"), along with its subsidiary Enzo Life Sciences, Inc. entered into a Settlement Agreement as of February 5, 2019 (the "Agreement") with Roche Diagnostics GmbH and Roche Molecular Systems, Inc. (together, "Roche") with respect to an action between the Company and Roche before the U.S. District Court, Southern District of New York, Case No 04-CV-4046. Roche has agreed to pay $21 million in settlement pursuant to the Agreement. This settlement does not affect Enzo's civil action for patent infringement against Roche in the U.S. District Court for the State of Delaware, Enzo Life Sciences Inc. v. Roche Molecular Systems Inc., et al., civil action no. 12-cv-00106, which remains pending on appeal.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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