Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionAdditionalWarrantsIssuedForTriggerOfAntidilutionProtectionNonvestedWeightedAverageExercisePrice
Namespace Prefix:	MGTI_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Additional Warrants Issued for Trigger of Antidilution Protection in Period.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalWarrantsIssuedForTriggerOfAntidilutionProtectionInPeriod
Namespace Prefix:	MGTI_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The number of shares into which fully or partially vestednon-option equity outstanding as of the balance sheet date can be currently converted under the non-option equity plan.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber
Namespace Prefix:	MGTI_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of non-option equity outstanding and currently exercisable under the non-option equity plan.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice
Namespace Prefix:	MGTI_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Weighted average price at which non-option equity holders acquired shares when converting their non-option equity into shares.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisesInPeriodWeightedAverageExercisePrice
Namespace Prefix:	MGTI_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Share based compensation arrangement by share based payment award non option equity instruments expired in period weighted average exercise price.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpiredInPeriodWeightedAverageExercisePrice
Namespace Prefix:	MGTI_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Weighted average remaining contractual term for vested portions of non-option equity outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingExercisableWeightedAverageRemainingContractualTerm1
Namespace Prefix:	MGTI_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock non-option equity plan.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	MGTI_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Weighted Average Remaining Contractual Life Warrants Outstanding.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm
Namespace Prefix:	MGTI_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Sharebased compensation arrangement by sharebased payment award non options outstanding intrinsic value.

No definition available.

Name:	MGTI_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingIntrinsicValue
Namespace Prefix:	MGTI_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Sharebased compensation arrangement by sharebased payment award non options exercisable intrinsic value.

No definition available.

Name:	MGTI_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsExercisableIntrinsicValue1
Namespace Prefix:	MGTI_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	us-gaap_EquityAbstract
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.

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

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

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

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-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=116856206&loc=d3e5070-113901