Summary of Significant Accounting Policies (Details)	Dec. 31, 2013 item
Los Angeles, California
Real estate owned
Number of retail-banking offices	2
Nearby city of Inglewood, California
Real estate owned
Number of retail-banking offices	1

Represents the number of retail-banking offices operated by the entity.

No definition available.

Name:	byfc_NumberOfRetailBankingOffices
Namespace Prefix:	byfc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant