Name:	mass_BusinessAcquisitionEarnoutRevenueSharesToBeIssuedBelowMinimumEarnoutRevenueThreshold
Namespace Prefix:	mass_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of shares of equity interests issued or issuable related to the earnout contingent consideration.

No definition available.

Name:	mass_BusinessAcquisitionEarnoutRevenueThresholdSharesToBeIssued
Namespace Prefix:	mass_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the number of shares issued for payment of consideration.

No definition available.

Name:	mass_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesSharesHigh
Namespace Prefix:	mass_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Period of contingent consideration upon achievement of certain milestones.

No definition available.

Name:	mass_ContingentConsiderationUponAchievementOfCertainMilestonesPeriod
Namespace Prefix:	mass_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The amount of earnout revenue threshold required for payment of contingent consideration.

No definition available.

Name:	mass_EarnoutRevenueThreshold
Namespace Prefix:	mass_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of earnout revenue threshold for certain other qualified bookings required for payment of contingent consideration.

No definition available.

Name:	mass_EarnoutRevenueThresholdForCertainOtherQualifiedBookings
Namespace Prefix:	mass_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

Name:	us-gaap_GeneralDiscussionOfPensionAndOtherPostretirementBenefitsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_BusinessAcquisitionAxis=mass_RedWaveTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: