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Commitments and Contingencies - Additional Information (Details) - License Agreement Terms - USD ($) $ in Millions	Oct. 03, 2017	Dec. 31, 2024
Commitments and Contingencies
Payments for milestones achieved	$ 150.0
Percentage of obligation to pay for milestones achieved	1.00%
Contingent obligation		$ 1.5

X

- Definition

An obligation to make certain payments as a result of reaching certain milestones in the development and sales of the product, and for significant events.

+ References

No definition available.

+ Details

Name:	mgrm_PaymentsForMilestonesAchieved
Namespace Prefix:	mgrm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of obligation to pay for milestones achieved at fair market value.

+ References

No definition available.

+ Details

Name:	mgrm_PercentageOfObligationToPayForMilestonesAchieved
Namespace Prefix:	mgrm_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-10

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

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.

+ References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: