Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Mar. 13, 2015	Jun. 30, 2014
Document and entity information [Abstract]
Entity public float			$ 55,534,072
Current fiscal year end date	--12-31
Entity central index key	0000750574
Entity current reporting status	Yes
Entity filer category	Smaller Reporting Company
Entity registrant name	Auburn National Bancorporation, Inc
Entity voluntary filers	No
Entity well known seasoned issuer	No
Entity common stock shares outstanding		3,643,378
Amendment flag	false
Document Type	10-K
Document Year Focus	2014
Document Period Focus	FY
Document Period End Date	Dec. 31, 2014