- DefinitionThe remaining lease term for operating and finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.
| Name: |
belfa_OperatingAndFinanceLeasesRemainingLeaseTerm |
| Namespace Prefix: |
belfa_ |
| Data Type: |
xbrli:durationItemType |
| Balance Type: |
na |
| Period Type: |
duration |