Document And Entity Information	6 Months Ended
	Jun. 30, 2013	Aug. 07, 2013
Document Information [Line Items]
Entity Registrant Name	BioFuel Energy Corp.
Entity Central Index Key	0001373670
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Trading Symbol	BIOF
Entity Common Stock, Shares Outstanding		5,443,292
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2013