Document And Entity Information (USD $)	6 Months Ended
	Sep. 30, 2011	Oct. 31, 2011	Sep. 30, 2010
Document and Entity Information [Abstract]
Entity Registrant Name	'mktg, inc.'
Document Type	10-Q
Current Fiscal Year End Date	--03-31
Entity Common Stock, Shares Outstanding		8,785,607
Entity Public Float			$ 5,719,528
Amendment Flag	false
Entity Central Index Key	0000886475
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2