Document And Entity Information	6 Months Ended
	Sep. 30, 2015 shares
Entity Registrant Name	FRIEDMAN INDUSTRIES INC
Entity Central Index Key	0000039092
Trading Symbol	frd
Current Fiscal Year End Date	--03-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)	6,799,444
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Amendment Flag	false