| Component: (Network and Table) | |
|---|---|
| Network | NG: Schedule: Income Tax Expense (Benefit), by Component (http://xasb.org/gaap/role/schedule/level4/IncomeTaxesDetails) |
| Table | Income Tax Expense (Benefit) Components [Table] |
| Income Tax Expense (Benefit) Components [Line Items] | Period [Axis] | |
|---|---|---|
2010-01-01 - 2010-12-31 | 2009-01-01 - 2009-12-31 | |