Asset acquisition contingent consideration.

No definition available.

Name:	novt_AssetAcquisitionContingentConsiderationLineItems
Namespace Prefix:	novt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For contingent consideration arrangements, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

No definition available.

+ Details

Name:	novt_ContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix:	novt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For contingent consideration arrangements, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

No definition available.

+ Details

Name:	novt_ContingentConsiderationArrangementsRangeOfOutcomesValueLow
Namespace Prefix:	novt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date when the acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	novt_DateOfAcquisitionAgreement
Namespace Prefix:	novt_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of contingent consideration payment annual installments.

+ References

No definition available.

+ Details

Name:	novt_NumberOfContingentConsiderationAnnualInstallments
Namespace Prefix:	novt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment for asset acquisition contingent consideration liability.

+ References

No definition available.

+ Details

Name:	novt_PaymentForAssetAcquisitionContingentConsiderationLiability
Namespace Prefix:	novt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=novt_VideoSignalProcessingAndManagementTechnologiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value Measurements - Asset Acquisition Contingent Consideration - Additional Information (Details)	1 Months Ended				3 Months Ended		6 Months Ended
	Feb. 28, 2021 USD ($)	Feb. 28, 2021 EUR (€)	Feb. 29, 2020 USD ($)	Feb. 29, 2020 EUR (€)	Jul. 02, 2021 USD ($)	Apr. 02, 2021 Installment	Jul. 02, 2021 USD ($)	Dec. 14, 2016 USD ($)	Dec. 14, 2016 EUR (€)
Asset Acquisition Contingent Consideration [Line Items]
Payment for contingent consideration	$ 2,200,000	€ 1,800,000	$ 2,600,000	€ 2,400,000
Video Signal Processing and Management Technologies
Asset Acquisition Contingent Consideration [Line Items]
Date of Acquisition Agreement						Dec. 14, 2016
Number of contingent consideration annual installments \| Installment						4
Undiscounted range of outcomes, minimum \| €									€ 0
Undiscounted range of outcomes, maximum								$ 6,600,000	€ 5,500,000
Changes in fair value of contingent consideration \| $					$ 0		$ 0