Details for Selection
| Standard label: | Schedule of Share-based Compensation, Nonemployee Director Stock Award Plan, Activity [Table Text Block] |
| Name: | us-gaap:ScheduleOfShareBasedCompensationNonemployeeDirectorStockAwardPlanActivityTableTextBlock |
| Documentation: | Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock awards granted to nonemployee directors that were outstanding at the beginning and end of the year, and the number of awards that were granted, exercised or converted, forfeited, and expired during the year. |
| Commentary: | |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Text Block] |