XML 56 R32.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Securities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
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
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |
Agency obligations (a) | $ | — | 30,947 | 14,869 | 14,433 | 60,249 |  | 375 | 830 |  | $ | 60,704
Agency RMBS (a) |  | — | — | 14,523 | 120,520 | 135,043 |  | 1,597 | 616 |  |  | 134,062
State and political subdivisions |  | — | 502 | 15,520 | 56,289 | 72,311 |  | 3,379 | 34 |  |  | 68,966
| Total available-for-sale | $ | — | 31,449 | 44,912 | 191,242 | 267,603 |  | 5,351 | 1,480 |  | $ | 263,732
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |
Agency obligations (a) | $ | — | — | 23,247 | 21,275 | 44,522 |  | — | 4,557 |  | $ | 49,079
Agency RMBS (a) |  | — | — | 8,306 | 154,052 | 162,358 |  | 976 | 4,733 |  | $ | 166,115
State and political subdivisions |  | — | 1,735 | 21,366 | 41,238 | 64,339 |  | 1,560 | 459 |  | $ | 63,238
| Total available-for-sale | $ | — | 1,735 | 52,919 | 216,565 | 271,219 |  | 2,536 | 9,749 |  | $ | 278,432
(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
December 31, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency obligations | $ | — |  |  | — |  |  | 24,126 |  |  | 830 |  |  | 24,126 |  | $ | 830
Agency RMBS |  | 9,078 |  |  | 22 |  |  | 42,744 |  |  | 594 |  |  | 51,822 |  |  | 616
State and political subdivisions |  | 4,257 |  |  | 34 |  |  | — |  |  | — |  |  | 4,257 |  |  | 34
|  | Total | $ | 13,335 |  |  | 56 |  |  | 66,870 |  |  | 1,424 |  |  | 80,205 |  | $ | 1,480
December 31, 2013: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency obligations | $ | 35,932 |  |  | 3,181 |  |  | 8,590 |  |  | 1,376 |  |  | 44,522 |  | $ | 4,557
Agency RMBS |  | 109,774 |  |  | 4,394 |  |  | 7,683 |  |  | 339 |  |  | 117,457 |  |  | 4,733
State and political subdivisions |  | 9,575 |  |  | 459 |  |  | — |  |  | — |  |  | 9,575 |  |  | 459
|  | Total | $ | 155,281 |  |  | 8,034 |  |  | 16,273 |  |  | 1,715 |  |  | 171,554 |  | $ | 9,749
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] |
|  |  |  |  | Year ended December 31
(Dollars in thousands) |  |  | 2014 |  |  | 2013 |  |  | 2012
Balance, beginning of period |  | $ | — |  |  | 1,257 |  |  | 3,276
| Additions: |  |  |  |  |  |  |  |  |
|  | Subsequent credit impairments |  |  | — |  |  | — |  |  | 130
| Reductions: |  |  |  |  |  |  |  |  |
|  | Securities sold |  |  | — |  |  | (757) |  |  | (2,149)
|  | Securities fully written down and deemed worthless |  |  | — |  |  | (500) |  |  | —
Balance, end of period |  | $ | — |  |  | — |  |  | 1,257
Available For Sale Securities Changes In Other Than Temporary Impairment Losses [Table Text Block] |
|  |  |  |  |  | Year ended December 31
(Dollars in thousands) |  |  | 2014 |  |  | 2013 |  |  | 2012
Other-than-temporary impairment charges (included in earnings): |  |  |  |  |  |  |  |  |
| Debt securities: |  |  |  |  |  |  |  |  |
|  | Agency RMBS |  | $ | 333 |  |  | — |  |  | —
|  | Individual issuer trust preferred securities |  | $ | — |  |  | — |  |  | 130
|  |  | Total debt securities |  | $ | 333 |  |  | — |  |  | 130
Total other-than-temporary impairment charges (included in earnings) |  | $ | 333 |  |  | — |  |  | 130
Other-than-temporary impairment on debt securities: |  |  |  |  |  |  |  |  |
| Recorded as part of gross realized losses: |  |  |  |  |  |  |  |  |
|  | Credit-related |  | $ | — |  |  | — |  |  | 130
|  | Securities with intent to sell |  |  | 333 |  |  | — |  |  | —
| Recorded directly to other comprehensive income for non-credit |  |  |  |  |  |  |  |  |
|  | related impairment |  |  | — |  |  | — |  |  | —
Total other-than-temporary impairment on debt securities |  | $ | 333 |  |  | — |  |  | 130
Schedule of Realized Gain (Loss) [Table Text Block] |
Realized Gains and Losses
The following table presents the gross realized gains and losses on sales and other-than-temporary impairment charges
related to securities.
|  |  |  | Year ended December 31
(Dollars in thousands) |  |  | 2014 |  |  | 2013 |  |  | 2012
Gross realized gains |  | $ | 467 |  |  | 745 |  |  | 1,005
Gross realized losses |  |  | (664) |  |  | (94) |  |  | (196)
Other-than-temporary impairment charges |  |  | (333) |  |  | — |  |  | (130)
| Realized gains, net |  | $ | (530) |  |  | 651 |  |  | 679

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | aubn_AvailableForSaleSecuriitesChangesInOtherThanTemporaryImpairmentLossesTableTextBlock
Namespace Prefix: | aubn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + 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 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: 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=27724398&loc=d3e27357-111563 Reference 3: 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=27724398&loc=d3e27337-111563 Reference 4: 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 5: 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=27724398&loc=d3e27198-111563 Reference 6: 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 7: 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=27724398&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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 amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27340-111563 + Details
Name: | us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration