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Stockholders' equity (Deficit) (Details Textual) (USD $)
1 Months Ended 6 Months Ended 9 Months Ended
Feb. 28, 2014
Dec. 31, 2014
Jun. 30, 2014
employees
Mar. 31, 2013
Stockholders' Equity (Deficit) (Textual)        
Common stock, shares authorized   100,000,000us-gaap_CommonStockSharesAuthorized 100,000,000us-gaap_CommonStockSharesAuthorized  
Common Stock, no par value          
Common stock, shares issued   21,772,567us-gaap_CommonStockSharesIssued 21,772,567us-gaap_CommonStockSharesIssued  
Common stock shares outstanding   21,772,567us-gaap_CommonStockSharesOutstanding 21,772,567us-gaap_CommonStockSharesOutstanding  
Common stock maximum offering for sale   6,250,000mktk_CommonStockMaximumOfferingForSale    
Common stock maximum offering for sale per share   $ 1.60mktk_CommonStockMaximumOfferingForSalePerShare    
Pursuant offering agreement shares   312,500mktk_PursuantOfferingAgreementShares    
Stock option term 3 years      
Aggregate grant date fair value of options   $ 1,416,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1    
Stock option [Member]        
Stockholders' Equity (Deficit) (Textual)        
Number of employees     2mktk_NumberOfEmployees
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
 
Stock options, Granted     614,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
Stock option term     5 years  
Stock options vested     114,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
 
Stock options exercisable price per share     $ 2.50us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
 
Aggregate grant date fair value of options   $ 144,936us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
$ 413,398us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
 
Fair value assumptions method   Binomial option pricing model    
Expected term   5 years    
Volatility   154.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
   
Dividend rate   0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
   
Maximum interest rate   1.66%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
   
Minimum interest rate   1.36%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
   
Stock option [Member] | Vesting year one [Member]        
Stockholders' Equity (Deficit) (Textual)        
Stock options expected to vest over the next 4 years     125,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheOneMember
 
Stock option expected to vest price per share     $ 3us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheOneMember
 
Stock option [Member] | Vesting year two [Member]        
Stockholders' Equity (Deficit) (Textual)        
Stock options expected to vest over the next 4 years     125,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheTwoMember
 
Stock option expected to vest price per share     $ 3.50us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheTwoMember
 
Stock option [Member] | Vesting year three [Member]        
Stockholders' Equity (Deficit) (Textual)        
Stock options expected to vest over the next 4 years     125,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheThreeMember
 
Stock option expected to vest price per share     $ 3.75us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheThreeMember
 
Stock option [Member] | Vesting year four [Member]        
Stockholders' Equity (Deficit) (Textual)        
Stock options expected to vest over the next 4 years     125,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= mktk_ShareBasedCompensationAwardTrancheFourMember
 
Stock option expected to vest price per share     $ 4.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= mktk_ShareBasedCompensationAwardTrancheFourMember