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Note 1 - The Company and Operations | 12 Months Ended
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Sep. 30, 2018
Notes to Financial Statements |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] | 1. THE COMPANY AND OPERATIONS Daily Journal Corporation (“Daily Journal”) publishes newspapers and web sites covering California and Arizona and produces several specialized information services. It also serves as a newspaper representative specializing in public notice advertising. Journal Technologies, Inc. (“Journal Technologies”), a wholly-owned subsidiary, includes as of October 1, 2014, the combined operations of Sustain Technologies, Inc. (“Sustain”), a wholly-owned subsidiary since 2008; New Dawn Technologies, Inc. (“New Dawn”), acquired in December 2012; and ISD Technologies, Inc. (“ISD”), acquired in September 2013. Journal Technologies supplies case management software systems and related products to courts, prosecutor and public defender offices, probation departments and other justice agencies, including administrative law organizations, city and county governments and bar associations. These organizations use the Journal Technologies family of products to help manage cases and information electronically, to interface with other critical justice partners and to extend electronic services to the public, including efiling and a website to pay traffic citations online, and bar members. These products are licensed to more than 500 organizations in 42 states and internationally. Essentially all of the operations of Daily Journal and Journal Technologies are based in California, Arizona, Colorado and Utah.

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