CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net loss	$ (5,765)us-gaap_ProfitLoss	$ (10,936)us-gaap_ProfitLoss
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	43us-gaap_Depreciation	31us-gaap_Depreciation
Amortization of intangible assets	661us-gaap_AmortizationOfIntangibleAssets	368us-gaap_AmortizationOfIntangibleAssets
Stock-based expense	449us-gaap_ShareBasedCompensation	2,965us-gaap_ShareBasedCompensation
Warrant expense	80mgt_WarrantExpense	0mgt_WarrantExpense
Impairment of intangible assets	135	0
Stock-based compensation - modification of Preferred Series A Warrants	0	598
Change in fair value of warrants	0	2,204
Gain on sale of patent	0	(750)
Change in operating assets and liabilities:
Accounts receivable	38	(34)
Prepaid expenses and other current assets	(40)	268
Accounts payable	17	(14)
Accrued expenses	86	(222)
Player deposit liability	(242)	0
Other payables	(14)	464
Net cash used in operating activities	(4,552)	(5,058)
Cash flows from investing activities:
Purchase of property and equipment	(41)	(12)
Cash acquired in purchase of DraftDay	547us-gaap_CashAcquiredFromAcquisition	0us-gaap_CashAcquiredFromAcquisition
Cash paid for purchase of DraftDay	(600)	0
Cash paid for purchase of FanTD	(11)	(124)
Release of restricted cash	2	1,899
Release of security deposit	2us-gaap_ProceedsFromOtherDeposits	0us-gaap_ProceedsFromOtherDeposits
Receipt from sale of patent	0	750
Cash acquired in purchase of Avcom, net of cash paid	0us-gaap_ProceedsFromPreviousAcquisition	9us-gaap_ProceedsFromPreviousAcquisition
Receipts from sale of intangible assets	0	6
Purchase of intangible assets	0	(90)
Net cash (used in) / provided by investing activities	(101)	2,222
Cash flows from financing activities:
Proceeds from ATM sales of Common stock, net of fees	1,466	0
Proceeds from exercise of warrants	0us-gaap_ProceedsFromWarrantExercises	3,197us-gaap_ProceedsFromWarrantExercises
Proceeds from modification of Preferred Series A warrants	0	838
Proceeds from issuance of Common stock	0	100
Repayment of loan - related party	0us-gaap_RepaymentsOfRelatedPartyDebt	(100)us-gaap_RepaymentsOfRelatedPartyDebt
Net cash provided by investing activities	1,466	4,035
Net change in cash and cash equivalents	(3,187)	1,199
Cash and cash equivalents, beginning of year	4,642	3,443
Cash and cash equivalents, end of year	1,455	4,642
Supplemental non-cash disclosures (investing and financing activities):
Transfers from the non-controlling interest in FanTD	1,116	0
Stock issued for exercise of warrants	0mgt_StockIssuedForExerciseOfWarrant	3,197mgt_StockIssuedForExerciseOfWarrant
Intangible asset contributed by non-controlling interest	0	191
Series A Convertible Preferred stock, dividends paid in kind	0	70
Conversion of Series A Preferred to Common stock	0	(116)
Assets acquired and liabilities assumed through purchase
Prepaid expenses and other current assets	0	31
Security deposit	0	2
Property and equipment	0	32
Intangible assets	790	631
Goodwill	0us-gaap_GoodwillAcquiredDuringPeriod	4,948us-gaap_GoodwillAcquiredDuringPeriod
Player deposit liability	(547)mgt_IncreaseDecreaseInDepositLiability	0mgt_IncreaseDecreaseInDepositLiability
Other payables	0	(126)
Loan payable - related party	0mgt_LoanPayableRelatedParty	(100)mgt_LoanPayableRelatedParty
Fantasy Sports Live [Member]
Cash flows from investing activities:
Purchase of intangible assets	0	(30)
Daily Joust [Member]
Cash flows from investing activities:
Purchase of intangible assets	0	(50)
Digital Angel [Member]
Cash flows from investing activities:
Purchase of intangible assets	0	(136)
Supplemental non-cash disclosures (investing and financing activities):
Stock issued for acquisition	0	202
DraftDay [Member]
Supplemental non-cash disclosures (investing and financing activities):
Stock issued for acquisition	190	0
FanTD LLC [Member]
Cash flows from investing activities:
Cash paid for purchase of DraftDay	(4)
Supplemental non-cash disclosures (investing and financing activities):
Stock issued for acquisition	103	3,018
Avcom [Member]
Supplemental non-cash disclosures (investing and financing activities):
Stock issued for acquisition	0	1,552
Assets acquired and liabilities assumed through purchase
Prepaid expenses and other current assets	0	29
Property and equipment	0	7
Intangible assets	0	65
Goodwill	0	1,496
Other payables	0	(44)
Long-term debt	0	(10)
Mgt Gaming [Member]
Cash flows from financing activities:
Cash and cash equivalents, beginning of year	338
Cash and cash equivalents, end of year	820	338
Assets acquired and liabilities assumed through purchase
Goodwill	0	6,444
Preferred Series A Warrants [Member]
Supplemental non-cash disclosures (investing and financing activities):
Reclassification of derivative liability	0	8,206
J&S warrants [Member]
Supplemental non-cash disclosures (investing and financing activities):
Reclassification of derivative liability	0	1,164
Series A Convertible Preferred stock [Member]
Supplemental non-cash disclosures (investing and financing activities):
Series A Convertible Preferred stock, dividends paid in kind	$ 0	$ 69

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