Cover
Cover - USD ($) $ in Millions | 12 Months Ended | ||
Sep. 30, 2022 | Jan. 18, 2023 | Mar. 31, 2022 | |
Cover [Abstract] | |||
Document Type | 10-K/A | ||
Amendment Flag | false | ||
Document Annual Report | true | ||
Document Transition Report | false | ||
Document Period End Date | Sep. 30, 2022 | ||
Document Fiscal Period Focus | FY | ||
Document Fiscal Year Focus | 2022 | ||
Current Fiscal Year End Date | --09-30 | ||
Entity File Number | 000-31157 | ||
Entity Registrant Name | INNOVATIVE SOLUTIONS AND SUPPORT, INC. | ||
Entity Central Index Key | 0000836690 | ||
Entity Tax Identification Number | 23-2507402 | ||
Entity Incorporation, State or Country Code | PA | ||
Entity Address, Address Line One | 720 Pennsylvania Drive | ||
Entity Address, City or Town | Exton | ||
Entity Address, State or Province | PA | ||
Entity Address, Postal Zip Code | 19341 | ||
City Area Code | 610 | ||
Local Phone Number | 646-9800 | ||
Title of 12(b) Security | Common Stock par value $.001 per share | ||
Trading Symbol | ISSC | ||
Security Exchange Name | NASDAQ | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Small Business | true | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 106.1 | ||
Entity Common Stock, Shares Outstanding | 1,717,366,224 | ||
ICFR Auditor Attestation Flag | false | ||
Auditor Name | GRANT THORNTON LLP | ||
Auditor Firm ID | 248 | ||
Auditor Location | Philadelphia, Pennsylvania |