Document And Entity Information	6 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	'mktg, inc.'
Entity Central Index Key	0000886475
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--03-31
Entity Well-Known Seasoned Issuer	No
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		8,662,105
Document Type	10-Q
Document Period End Date	Sep. 30, 2013
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2