Document and Entity Information	9 Months Ended
	Sep. 30, 2016 shares
Document And Entity Information
Entity Registrant Name	SOUTHWEST GEORGIA FINANCIAL CORP
Entity Central Index Key	0000315849
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding	2,547,837
Trading Symbol	SGB
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2016