- DefinitionTabular disclosure for a fiscal year schedule of the amortization of financing costs for debt.
| Name: |
iiin_ScheduleOfAmortizationOfFinancingCostsForDebtTableTextBlock |
| Namespace Prefix: |
iiin_ |
| Data Type: |
dtr-types:textBlockItemType |
| Balance Type: |
na |
| Period Type: |
duration |