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Investments (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments [Abstract] |
Unrealized Gain (Loss) on Investments [Table Text Block] | The following table shows a comparison of amortized cost and fair values of investment securities at September 30, 2013 and December 31, 2012:
|  |  | Gross | Gross |  |  |  |
| Amortized | Unrealized | Unrealized | Fair | OTTI in
(in thousands) | Cost | Gains | Losses | Value | AOCI
September 30, 2013 |  |  |  |  |  |  |  |  |  |
Available for Sale: |  |  |  |  |  |  |  |  |  |
U.S. government agencies | $ | 89,723 | $ | 85 | $ | 4,365 | $ | 85,443 | $ | 0
Residential mortgage-backed agencies |  | 87,049 |  | 368 |  | 3,632 |  | 83,785 |  | 0
Commercial mortgage-backed agencies |  | 28,174 |  | 11 |  | 904 |  | 27,281 |  | 0
Collateralized mortgage obligations |  | 28,233 |  | 106 |  | 404 |  | 27,935 |  | 0
Obligations of states and political subdivisions |  | 56,172 |  | 1,243 |  | 1,122 |  | 56,293 |  | 0
Collateralized debt obligations |  | 37,043 |  | 363 |  | 21,133 |  | 16,273 |  | 13,783
Total available for sale | $ | 326,394 | $ | 2,176 | $ | 31,560 | $ | 297,010 | $ | 13,783
Held to Maturity: |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions | $ | 3,900 | $ | 234 | $ | 598 | $ | 3,536 | $ | 0
December 31, 2012 |  |  |  |  |  |  |  |  |  |
Available for Sale: |  |  |  |  |  |  |  |  |  |
U.S. government agencies | $ | 40,334 | $ | 97 | $ | 111 | $ | 40,320 | $ | 0
Residential mortgage-backed agencies |  | 43,596 |  | 703 |  | 191 |  | 44,108 |  | 0
Commercial mortgage-backed agencies |  | 37,330 |  | 288 |  | 0 |  | 37,618 |  | 0
Collateralized mortgage obligations |  | 31,836 |  | 188 |  | 293 |  | 31,731 |  | 0
Obligations of states and political subdivisions |  | 55,212 |  | 2,842 |  | 0 |  | 58,054 |  | 0
Collateralized debt obligations |  | 36,798 |  | 0 |  | 25,356 |  | 11,442 |  | 16,876
Total available for sale | $ | 245,106 | $ | 4,118 | $ | 25,951 | $ | 223,273 | $ | 16,876
Held to Maturity: |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions | $ | 4,040 | $ | 542 | $ | 235 | $ | 4,347 | $ | 0
Proceeds Fom Sales And Realized Gain And Losses [Table Text Block] | Proceeds from sales of securities and the realized gains and losses are as follows:
| Nine Months Ended | Three Months Ended
| September 30, | September 30,
(in thousands) | 2013 | 2012 | 2013 | 2012
Proceeds | $ | 50,169 | $ | 26,063 | $ | 15,033 | $ | 15,609
Realized gains |  | 447 |  | 754 |  | 35 |  | 91
Realized losses |  | 323 |  | 192 |  | 138 |  | 128
Gross Unrealized Losses And Fair Values Of Securities [Table Text Block] |
| Less than 12 months | 12 months or more
| Fair | Unrealized | Fair | Unrealized
(in thousands) | Value | Losses | Value | Losses
September 30, 2013 |  |  |  |  |  |  |  |
Available for Sale: |  |  |  |  |  |  |  |
U.S. government agencies | $ | 49,309 | $ | 3,381 | $ | 6,416 | $ | 983
Residential mortgage-backed agencies |  | 76,846 |  | 3,569 |  | 1,173 |  | 64
Commercial mortgage-backed agencies |  | 22,197 |  | 904 |  | 0 |  | 0
Collateralized mortgage obligations |  | 18,746 |  | 391 |  | 3,209 |  | 13
Obligations of states and political subdivisions |  | 16,057 |  | 1,122 |  | 0 |  | 0
Collateralized debt obligations |  | 0 |  | 0 |  | 15,612 |  | 21,133
Total available for sale | $ | 183,155 | $ | 9,367 | $ | 26,410 | $ | 22,193
Held to Maturity: |  |  |  |  |  |  |  |
Obligations of states and political subdivisions | $ | 2,262 | $ | 598 | $ | 0 | $ | 0
December 31, 2012 |  |  |  |  |  |  |  |
Available for Sale: |  |  |  |  |  |  |  |
U.S. government agencies | $ | 18,220 | $ | 111 | $ | 0 | $ | 0
Residential mortgage-backed agencies |  | 22,407 |  | 191 |  | 0 |  | 0
Commercial mortgage-backed agencies |  | 0 |  | 0 |  | 0 |  | 0
Collateralized mortgage obligations |  | 16,576 |  | 293 |  | 450 |  | 0*
Obligations of states and political subdivisions |  | 0 |  | 0 |  | 0 |  | 0
Collateralized debt obligations |  | 0 |  | 0 |  | 11,442 |  | 25,356
Total available for sale | $ | 57,203 | $ | 595 | $ | 11,892 | $ | 25,356
Held to Maturity: |  |  |  |  |  |  |  |
Obligations of states and political subdivisions | $ | 2,765 | $ | 235 | $ | 0 | $ | 0
* - De minimis |  |  |  |  |  |  |  |
Non-Cash OTTI Credit Losses Recognized In Earnings [Table Text Block] | The following tables present a cumulative roll-forward of the amount of non-cash OTTI charges related to credit losses which have been recognized in earnings for the trust preferred securities in the CDO portfolio held and not intended to be sold for the nine- and three-month periods ended September 30, 2013 and 2012:
| Nine Months Ended September 30,
(in thousands) | 2013 | 2012
Balance of credit-related OTTI at January 1 | $ | 13,959 | $ | 14,424
Additions for credit-related OTTI not previously recognized |  | 0 |  | 0
Additional increases for credit-related OTTI previously recognized when there is no |  |  |  |
intent to sell and no requirement to sell before recovery of amortized cost basis |  | 0 |  | 0
Decreases for previously recognized credit-related OTTI because there was an |  |  |  |
intent to sell |  | 0 |  | 0
Reduction for increases in cash flows expected to be collected |  | (404) |  | (346)
Balance of credit-related OTTI at September 30 | $ | 13,555 | $ | 14,078
| Three Months Ended September 30,
(in thousands) | 2013 | 2012
Balance of credit-related OTTI at July 1 | $ | 13,695 | $ | 14,200
Additions for credit-related OTTI not previously recognized |  | 0 |  | 0
Additional increases for credit-related OTTI previously recognized when there is no |  |  |  |
intent to sell and no requirement to sell before recovery of amortized cost basis |  | 0 |  | 0
Decreases for previously recognized credit-related OTTI because there was an |  |  |  |
intent to sell |  | 0 |  | 0
Reduction for increases in cash flows expected to be collected |  | (140) |  | (122)
Balance of credit-related OTTI at September 30 | $ | 13,555 | $ | 14,078
Amortized Cost And Fair Values Classified By Contractual Maturity Date [Table Text Block] |
| September 30, 2013
| Amortized | Fair
(in thousands) | Cost | Value
Contractual Maturity |  |  |  |
Available for sale: |  |  |  |
Due after one year through five years | $ | 20,041 | $ | 20,105
Due after five years through ten years |  | 69,285 |  | 69,095
Due after ten years |  | 93,612 |  | 68,809
|  | 182,938 |  | 158,009
Residential mortgage-backed agencies |  | 87,049 |  | 83,785
Commercial mortgage-backed agencies |  | 28,174 |  | 27,281
Collateralized mortgage obligations |  | 28,233 |  | 27,935
| $ | 326,394 | $ | 297,010
Held to Maturity: |  |  |  |
Due after ten years | $ | 3,900 | $ | 3,536

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- 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
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