Auburn National Bancorporation - Parent Only, Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net earnings	$ 7,118	$ 6,763	$ 5,538
Depreciation and amortization	827	837	665
Net gain on disposition of premises and equipment	(1,018)	0	0
Net decrease in other assets	1,232	1,131	1,015
Net (decrease) increase in accrued expenses and other liabilities	(527)	(171)	685
Net cash provided by operating activities	13,721	15,057	14,088
Cash flows from investing activities:
Proceeds from sale of premises and equipment	1,148	0	0
Net cash (used in) provided by investing activities	(13,065)	19,113	18,302
Cash flows from financing activities:
Stock repurchases	0	0	0
Proceeds from sale of treasury stock	4	5	1
Dividends paid	(3,060)	(2,987)	(2,914)
Net cash (used in) provided by financing activities	(8,383)	(27,649)	1,614
Net change in cash and cash equivalents	(7,727)	6,521	34,004
Cash and cash equivalents at beginning of period	61,949	55,428	21,424
Cash and cash equivalents at end of period	54,222	61,949	55,428
Parent Company [Member]
Cash flows from operating activities:
Net earnings	7,118	6,763	5,538
Depreciation and amortization	28	29	80
Net gain on disposition of premises and equipment	1,018	0	0
Net decrease in other assets	(316)	(16)	(22)
Net (decrease) increase in accrued expenses and other liabilities	(101)	(109)	(727)
Equity In Distributed (Undistributed) Earnings Of Bank Subsidary	3,343	3,753	2,685
Net cash provided by operating activities	3,000	2,946	2,228
Cash flows from investing activities:
Purchases of premises and equipment	0	17	0
Proceeds from sale of premises and equipment	1,148	0	0
Proceeds from sale of premises and equipment to bank subsidiary	0	0	4,450
Capital Contribution To Bank Subsidary	0	0	3,200
Net cash (used in) provided by investing activities	1,148	(17)	1,250
Cash flows from financing activities:
Stock repurchases	0	0	0
Proceeds from sale of treasury stock	4	5	1
Dividends paid	3,060	2,987	2,914
Net cash (used in) provided by financing activities	(3,056)	(2,982)	(2,913)
Net change in cash and cash equivalents	1,092	(53)	565
Cash and cash equivalents at beginning of period	1,316	1,369	804
Cash and cash equivalents at end of period	$ 2,408	$ 1,316	$ 1,369