| Component: (Network and Table) | |
|---|---|
| Network | 2412402 - Disclosure - Accounts Payable and Accrued Liabilities (Details) (http://grantierra.com/role/AccountsPayableAndAccruedLiabilitiesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001273441 (http://www.sec.gov/CIK) |
| Payables and Accruals [Abstract] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Payables and Accruals [Abstract] | ||
Trade | ||
Royalties | ||
Employee compensation and severance | ||
Other | ||
Total | ||