XML 31 R20.htm IDEA: XBRL DOCUMENT v3.8.0.1

Securities (Tables)

9 Months Ended

Sep. 30, 2017

Investments debt and equity securities [Abstract]

Available-for-sale Securities [Table Text Block]

			1 year	1 to 5	5 to 10	After 10	Fair		Gross Unrealized			Amortized
(Dollars in thousands)			or less	years	years	years	Value		Gains	Losses		Cost
September 30, 2017
Agency obligations (a)		$	—	29,496	24,009	—	53,505		230	654		$	53,929
Agency RMBS (a)			—	—	12,028	127,778	139,806		606	1,174			140,374
State and political subdivisions			—	2,097	10,716	59,047	71,860		1,580	363			70,643
	Total available-for-sale	$	—	31,593	46,753	186,825	265,171		2,416	2,191		$	264,946

December 31, 2016
Agency obligations (a)		$	3,047	22,531	19,893	—	45,471		331	973		$	46,113
Agency RMBS (a)			—	972	16,171	110,644	127,787		551	1,805			129,041
State and political subdivisions			—	2,480	10,210	57,624	70,314		1,509	734			69,539
	Total available-for-sale	$	3,047	25,983	46,274	168,268	243,572		2,391	3,512		$	244,693
(a) Includes securities issued by U.S. government agencies or government sponsored entities.

Available-for-sale Securities, Continuous Unrealized Loss Position [Table Text Block]

				Less than 12 Months						12 Months or Longer						Total
				Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
(Dollars in thousands)				Value			Losses			Value			Losses			Value			Losses
September 30, 2017:
Agency obligations			$	9,871			67			15,655			587		$	25,526			654
Agency RMBS				46,620			375			34,051			799			80,671			1,174
State and political subdivisions				8,164			151			7,710			212			15,874			363
		Total	$	64,655			593			57,416			1,598		$	122,071			2,191

December 31, 2016:
Agency obligations			$	20,352			973			—			—		$	20,352			973
Agency RMBS				89,062			1,805			—			—			89,062			1,805
State and political subdivisions				20,444			734			—			—			20,444			734
		Total	$	129,858			3,512			—			—		$	129,858			3,512

Schedule of Realized Gain (Loss) [Table Text Block]

Realized Gains and Losses
The following table presents the gross realized gains and losses on sales of securities.
					Quarter ended September 30,						Nine months ended September 30,
(Dollars in thousands)					2017			2016			2017			2016
Gross realized gains				$	49			148		$	51			148
	Realized gains, net			$	49			148		$	51			148

X

- References

No definition available.

+ Details

Name:	aubn_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTableTextBlock
Namespace Prefix:	aubn_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27198-111563

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

+ Details

Name:	us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration