Name:	SVMB_DisclosureRightofuseAssetsAbstract
Namespace Prefix:	SVMB_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Operating lease right of use asset accumulated depreciation.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetAccumulatedDepreciation
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Operating lease right of use asset accumulated depreciation effects of currency translation.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetAccumulatedDepreciationEffectsOfCurrencyTranslation
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Accumulated depreciation write-off during the period.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetAmortizationWriteOff
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Operating lease right of use asset cost.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetCost
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Operating lease right of use asset cost additions.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetCostAdditions
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Operating lease right of use asset cost effects of currency translation.

No definition available.

Name:	SVMB_OperatingLeaseRightOfUseAssetCostEffectsOfCurrencyTranslation
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Operating lease write-off asset.

No definition available.

Name:	SVMB_OperatingLeaseWriteOffAsset
Namespace Prefix:	SVMB_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of lessee's right to use underlying asset under operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of periodic reduction over lease term of carrying amount of right-of-use asset from operating lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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