Name:	mgt_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageExercisePriceWarrantsExercised
Namespace Prefix:	mgt_
Data Type:	num:perShareItemType
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Period Type:	duration

Represents share based compensation arrangement by share based payment award weighted average exercise price warrants expired.

No definition available.

Name:	mgt_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageExercisePriceWarrantsExpired
Namespace Prefix:	mgt_
Data Type:	num:perShareItemType
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Period Type:	duration

Represents share based compensation arrangement by share based payment award weighted average exercise price warrants issued.

No definition available.

Name:	mgt_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageExercisePriceWarrantsIssued
Namespace Prefix:	mgt_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Represents share based compensation arrangement by share based payment award weighted average exercise price warrants outstanding.

No definition available.

Name:	mgt_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageExercisePriceWarrantsOutstanding
Namespace Prefix:	mgt_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

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

Number of non-option equity instruments exercised by participants.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
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Period Type:	duration

Net number of non-option equity instruments granted to participants.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901