| Report Element Information |
| Run date/time: 7/18/2011 7:59:40 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Director, Options Granted, at Fair Value |
| Documentation: | Sed eu nibh. Fusce vitae mi. Sed dapibus venenatis ipsum. |
| Balance type: | Credit |
| Period type: | For Period (duration) |
| Report element type: | [Concept] |
| Data type: | Monetary (xbrli:monetaryItemType) |
| ID: | pattern_DirectorOptionsGrantedAtFairValue |
| Name: | pattern:DirectorOptionsGrantedAtFairValue |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Sed eu nibh. Fusce vitae mi. Sed dapibus venenatis ipsum. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Director, Options Granted, at Fair Value | en |