XML 25 R13.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Other Assets | 12 Months Ended
--- | ---
Sep. 30, 2022
Other Assets |
Other Assets | 7. Other Assets ​ Other assets consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, |  | September 30,
​ | ​ | 2022 | ​ | 2021
Intangible assets, net of accumulated amortization of $636,158 at September 30, 2022 and $634,032 at September 30, 2021 | ​ | $ | 60,348 | ​ | $ | 62,474
Operating lease right-of-use assets | ​ | ​ | 28,680 | ​ | ​ | 42,976
Other non-current assets | ​ |  | 75,300 | ​ |  | 82,834
​ | ​ | $ | 164,328 | ​ | $ | 188,284
​ Intangible assets consist of licensing and certification rights which are amortized over a defined number of units. No impairment charges were recorded in fiscal 2022, 2021 or 2020. ​ Total intangible amortization expense was $2,126, $50,377 and $32,618 in fiscal years 2022, 2021 and 2020, respectively. The timing of future amortization expense is not determinable because the intangible assets are being amortized over a defined number of units. ​ Other non-current assets as of September 30, 2022 and September 30, 2021 include the security deposit for an airplane hangar, and a deposit for medical claims required under the Company’s medical plan. In addition, other non-current assets include $0 and $7,535 of prepaid software licenses, that will be earned upon the shipment of a certain product to a customer, as of September 30, 2022, and September 30, 2021, respectively.

X
- Definition The entire disclosure for other noncurrent assets. + References No definition available. + Details
Name: | issc_OtherAssetsNoncurrentDisclosureTextBlock
Namespace Prefix: | issc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OtherAssetsNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration