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DESCRIPTION OF BUSINESS	6 Months Ended
DESCRIPTION OF BUSINESS	Mar. 31, 2017
Description of Business [Abstract]
Description of Business	NOTE 1. DESCRIPTION OF BUSINESS Datawatch Corporation (the “Company” or “Datawatch”) is a Delaware corporation, formed in 1986, with executive offices located at 4 Crosby Drive, Bedford, MA 01730. The Company provides self-service data preparation and visual data discovery software.