Name:	mgt_AdjustmentsToAdditionalPaidInCapitalReclassificationOfWarrantsIntoEquity
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Data Type:	xbrli:monetaryItemType
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Cash paid for modification of warrants

No definition available.

Name:	mgt_CashPaidForModificationOfWarrants
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The cash inflow associates with net proceeds from the sale of patent during the reporting period.

No definition available.

Name:	mgt_CashReceivedOnSaleOfPatent
Namespace Prefix:	mgt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount represents cash outflow due to commission paid to broker.

No definition available.

Name:	mgt_CommissionPaid
Namespace Prefix:	mgt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Contribution and sale agreement description

No definition available.

Name:	mgt_ContributionAndSaleAgreementDescription
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

An fee is charged by the escrow agent for transacting the third parties documents during the reporting period.

No definition available.

Name:	mgt_EscrowAgentFee
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of cash paid in the acquisition of Intangible Assets.

No definition available.

Name:	mgt_FiniteLivedIntangibleAssetAcquiredCashPaid
Namespace Prefix:	mgt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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The amount of adjustment related to the foreign withholding tax of income or expense on the sale of patent during the reporting period.

No definition available.

Name:	mgt_ForeignWithholdingTaxAmount
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Amount of gain (loss) on mark to market of intangible assets.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Data Type:	xbrli:stringItemType
Balance Type:	na
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The amount represents cash inflow of gross proceeds from the sale of medical patents during the period.

No definition available.

Name:	mgt_GrossProceedsFromSaleOfMedicalPatents
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount represents the net proceeds from the sale of medical patents during the period.

No definition available.

Name:	mgt_NetProceedsFromSaleOfMedicalPatents
Namespace Prefix:	mgt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

This description represents sale agreement during the reporting period.

No definition available.

Name:	mgt_SaleAgreementDescription
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Data Type:	xbrli:stringItemType
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Period Type:	duration

Number of shares of stock issued during the period as part of a transaction to acquire warrants.

No definition available.

Name:	mgt_StockIssuedDuringPeriodSharesPurchaseOfWarrants
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Represents the term of warrants.

No definition available.

Name:	mgt_WarrantTerm
Namespace Prefix:	mgt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Exercise price per share or per unit of warrants or rights outstanding.

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Number of warrants or rights outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

No definition available.

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

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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

Name:	dei_LegalEntityAxis=mgt_MgtGamingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mgt_JsGamingIncMember
Namespace Prefix:
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