Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2017	Feb. 12, 2018
Document And Entity Information
Entity Registrant Name	MEXCO ENERGY CORP
Entity Central Index Key	0000066418
Document Type	10-Q
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		2,037,266
Trading Symbol	MXC
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2018