Document and Entity Information	3 Months Ended
	Mar. 31, 2013	Apr. 30, 2013 Common stock	Apr. 30, 2013 Class A common stock
Entity Registrant Name	DOVER DOWNS GAMING & ENTERTAINMENT INC
Entity Central Index Key	0001162556
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		17,759,279	14,870,673
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1