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Document and Entity Information	9 Months Ended
	Jun. 30, 2014	Aug. 01, 2014
Document and Entity Information
Entity Registrant Name	INNOVATIVE SOLUTIONS & SUPPORT INC
Entity Central Index Key	0000836690
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		16,955,308
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3

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