XML 233 R43.htm IDEA: XBRL DOCUMENT
v3.22.2

GOVERNMENT FEES AND OTHER TAXES (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2022
Disclosure Of Government Fees And Other Taxes Explanatory [Abstract] |
Schedule of Government Fees and Other Taxes Consist |
|  | Year ended March 31, |
|  | 2022 |  |  | 2021 |
Government fees |  | $ | 69 |  |  | $ | 63 |
Other taxes |  |  | 2,574 |  |  |  | 2,311 |
|  | $ | 2,643 |  |  | $ | 2,374 |

X
- Definition The disclosure of detailed information about government fees and other taxes consist. + References No definition available. + Details
Name: | svm_DisclosureOfDetailedInformationAboutGovernmentFeesAndOtherTaxesExplanatory
Namespace Prefix: | svm_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | svm_DisclosureOfGovernmentFeesAndOtherTaxesExplanatoryAbstract
Namespace Prefix: | svm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration