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Period Type:	instant

Amount of deferred tax consequences attributable to taxable temporary differences derived from lease liability.

No definition available.

Name:	bnkl_DeferredTaxLiabilitiesLeaseLiability
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Amount before allocation of valuation allowances of deferred tax liabilities attributable to deductible operating loss carry forwards.

No definition available.

Name:	bnkl_DeferredTaxLiabilitiesOperatingLossCarryforwards
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Amount before allocation of valuation allowances of deferred tax liabilities attributable to deductible general business tax credit carry forwards.

No definition available.

Name:	bnkl_DeferredTaxLiabilitiesOperatingLossCarryforwardsDomestic
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Data Type:	xbrli:monetaryItemType
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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

No definition available.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

No definition available.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=123427490&loc=d3e31931-109318

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Amount of deferred tax liability attributable to taxable temporary differences from research and development costs.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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- References

No definition available.