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Investment Securities (Tables) | 6 Months Ended
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Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract] |
Unrealized Gain (Loss) on Investments [Table Text Block] | The following tables present information related to the Corporation’s investment securities at June 30, 2014 and December 31, 2013.
|  | June 30, 2014 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
|  | (dollars in thousands) |
Investment Securities Available-for-Sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 9,608 |  |  | $ | — |  |  | $ | (136 | ) |  | $ | 9,472 |
Federal agency obligations |  |  | 22,643 |  |  |  | 116 |  |  |  | (111 | ) |  |  | 22,648 |
Residential mortgage pass-through securities |  |  | 44,369 |  |  |  | 1,563 |  |  |  | (13 | ) |  |  | 45,919 |
Commercial mortgage pass-through securities |  |  | 3,072 |  |  |  | — |  |  |  | (51 | ) |  |  | 3,021 |
Obligations of U.S. states and political subdivisions |  |  | 6,303 |  |  |  | 200 |  |  |  | — |  |  |  | 6,503 |
Trust preferred securities |  |  | 16,085 |  |  |  | 490 |  |  |  | (239 | ) |  |  | 16,336 |
Corporate bonds and notes |  |  | 132,401 |  |  |  | 6,969 |  |  |  | (43 | ) |  |  | 139,327 |
Asset-backed securities |  |  | 15,010 |  |  |  | 166 |  |  |  | — |  |  |  | 15,176 |
Certificates of deposit |  |  | 2,099 |  |  |  | 38 |  |  |  | (5 | ) |  |  | 2,132 |
Equity securities |  |  | 376 |  |  |  | — |  |  |  | (83 | ) |  |  | 293 |
Mutual funds and money market funds |  |  | 6,232 |  |  |  | — |  |  |  | (100 | ) |  |  | 6,132 |
Total |  | $ | 258,198 |  |  | $ | 9,542 |  |  | $ | (781 | ) |  | $ | 266,959 |
Investment Securities Held-to-Maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 28,159 |  |  | $ | 257 |  |  | $ | — |  |  | $ | 28,416 |
Federal agency obligations |  |  | 22,039 |  |  |  | 166 |  |  |  | (19 | ) |  |  | 22,186 |
Residential mortgage pass-through securities |  |  | 2,049 |  |  |  | 14 |  |  |  | — |  |  |  | 2,063 |
Commercial mortgage pass-through securities |  |  | 4,341 |  |  |  | 77 |  |  |  | (18 | ) |  |  | 4,400 |
Obligations of U.S. states and political subdivisions |  |  | 123,646 |  |  |  | 3,327 |  |  |  | (410 | ) |  |  | 126,563 |
Corporate bonds and notes |  |  | 37,925 |  |  |  | 950 |  |  |  | — |  |  |  | 38,875 |
Total |  | $ | 218,159 |  |  | $ | 4,791 |  |  | $ | (447 | ) |  | $ | 222,503 |
Total investment securities |  | $ | 476,357 |  |  | $ | 14,333 |  |  | $ | (1,228 | ) |  | $ | 489,462 |
|  | December 31, 2013 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
|  | (dollars in thousands) |
Investment Securities Available-for-Sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 14,344 |  |  | $ | — |  |  | $ | (825 | ) |  | $ | 13,519 |
Federal agency obligations |  |  | 20,567 |  |  |  | 29 |  |  |  | (655 | ) |  |  | 19,941 |
Residential mortgage pass-through securities |  |  | 48,312 |  |  |  | 791 |  |  |  | (229 | ) |  |  | 48,874 |
Commercial mortgage pass-through securities |  |  | 7,145 |  |  |  | 3 |  |  |  | (157 | ) |  |  | 6,991 |
Obligations of U.S. states and political subdivisions |  |  | 30,804 |  |  |  | 711 |  |  |  | (55 | ) |  |  | 31,460 |
Trust preferred securities |  |  | 19,763 |  |  |  | 150 |  |  |  | (510 | ) |  |  | 19,403 |
Corporate bonds and notes |  |  | 154,182 |  |  |  | 4,930 |  |  |  | (482 | ) |  |  | 158,630 |
Asset-backed securities |  |  | 15,733 |  |  |  | 246 |  |  |  | — |  |  |  | 15,979 |
Certificates of deposit |  |  | 2,250 |  |  |  | 32 |  |  |  | (20 | ) |  |  | 2,262 |
Equity securities |  |  | 376 |  |  |  | — |  |  |  | (89 | ) |  |  | 287 |
Mutual funds and money market funds |  |  | 5,671 |  |  |  | 68 |  |  |  | (15 | ) |  |  | 5,724 |
Total |  | $ | 319,147 |  |  | $ | 6,960 |  |  | $ | (3,037 | ) |  | $ | 323,070 |
Investment Securities Held-to-Maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 28,056 |  |  | $ | — |  |  | $ | (1,019 | ) |  | $ | 27,037 |
Federal agency obligations |  |  | 15,249 |  |  |  | 23 |  |  |  | (389 | ) |  |  | 14,883 |
Residential mortgage-backed securities |  |  | 2,246 |  |  |  | — |  |  |  | (64 | ) |  |  | 2,182 |
Commercial mortgage-backed securities |  |  | 4,417 |  |  |  | 41 |  |  |  | (62 | ) |  |  | 4,396 |
Obligations of U.S. states and political subdivisions |  |  | 127,418 |  |  |  | 1,303 |  |  |  | (3,688 | ) |  |  | 125,033 |
Corporate bonds and notes |  |  | 37,900 |  |  |  | 149 |  |  |  | (622 | ) |  |  | 37,427 |
Total |  | $ | 215,286 |  |  | $ | 1,516 |  |  | $ | (5,844 | ) |  | $ | 210,958 |
Total investment securities |  | $ | 534,433 |  |  | $ | 8,476 |  |  | $ | (8,881 | ) |  | $ | 534,028 |
Investments Classified by Contractual Maturity Date [Table Text Block] | The following table presents information for investment securities available-for-sale at June 30, 2014, based on scheduled maturities. Actual maturities can be expected to differ from scheduled maturities due to prepayment or early call options of the issuer.
|  | June 30, 2014 |
|  | Amortized Cost |  |  | Fair Value |
|  | (in thousands) |
Investment Securities Available-for-Sale: |  |  |
Due in one year or less |  | $ | 9,384 |  |  | $ | 9,499 |
Due after one year through five years |  |  | 45,331 |  |  |  | 46,591 |
Due after five years through ten years |  |  | 112,083 |  |  |  | 117,869 |
Due after ten years |  |  | 37,351 |  |  |  | 37,635 |
Residential mortgage pass-through securities |  |  | 44,369 |  |  |  | 45,919 |
Commercial mortgage pass-through securities |  |  | 3,072 |  |  |  | 3,021 |
Equity securities |  |  | 376 |  |  |  | 293 |
Mutual funds and money market funds |  |  | 6,232 |  |  |  | 6,132 |
Total |  | $ | 258,198 |  |  | $ | 266,959 |
Investment Securities Held-to-Maturity: |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 2,052 |  |  | $ | 2,054 |
Due after one year through five years |  |  | 12,932 |  |  |  | 13,203 |
Due after five years through ten years |  |  | 68,506 |  |  |  | 69,838 |
Due after ten years |  |  | 128,279 |  |  |  | 130,945 |
Residential mortgage-backed securities |  |  | 2,049 |  |  |  | 2,063 |
Commercial mortgage pass-through securities |  |  | 4,341 |  |  |  | 4,400 |
Total |  | $ | 218,159 |  |  | $ | 222,503 |
Total investment securities |  | $ | 476,357 |  |  | $ | 489,462 |
Schedule of Realized Gain (Loss) [Table Text Block] | Gross gains and losses from the sales of investment securities for the three-month and six-month periods ended June 30, 2014 and 2013 were as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(in thousands) |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Gross gains on sales of investment securities |  | $ | 579 |  |  | $ | 600 |  |  | $ | 2,011 |  |  | $ | 1,032 |
Gross losses on sales of investment securities |  |  | 5 |  |  |  | — |  |  |  | 22 |  |  |  | 89 |
Net gains on sales of investment securities |  | $ | 574 |  |  | $ | 600 |  |  | $ | 1,989 |  |  | $ | 943 |
Schedule of OTTI Charges for period | The following summarizes OTTI charges for the periods indicated.
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
(in thousands) |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Other than temporary impairment charges |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Principal losses on a variable rate CMO |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 24 |
Total other-than-temporary impairment charges |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 24 |
Schedule Of Preferred Security And Associated Ratings [Table Text Block] | The following table presents detailed information for each trust preferred security held by the Corporation at June 30, 2014 which has at least one rating below investment grade.
Deal Name |  | Single Issuer or Pooled |  | Class/ Tranche |  |  | Amortized Cost |  |  | Fair Value |  |  | Gross Unrealized Gain (Loss) |  |  | Lowest Credit Rating Assigned |  | Number of Banks Currently Performing |  |  | Deferrals and Defaults as % of Original Collateral |  | Expected Deferral/Defaults as % of Remaining Performing Collateral
|  | (dollars in thousands)
Countrywide Capital IV |  | Single |  |  | n/a |  |  | $ | 1,771 |  |  | $ | 1,819 |  |  | $ | 48 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Countrywide Capital V |  | Single |  |  | n/a |  |  |  | 2,747 |  |  |  | 2,858 |  |  |  | 111 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Countrywide Capital V |  | Single |  |  | n/a |  |  |  | 250 |  |  |  | 260 |  |  |  | 10 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Nationsbank Cap Trust III |  | Single |  |  | n/a |  |  |  | 1,574 |  |  |  | 1,335 |  |  |  | (239 | ) |  | BB+ |  |  | 1 |  |  | None |  | None
Morgan Stanley Cap Trust IV |  | Single |  |  | n/a |  |  |  | 2,500 |  |  |  | 2,515 |  |  |  | 15 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Morgan Stanley Cap Trust IV |  | Single |  |  | n/a |  |  |  | 1,743 |  |  |  | 1,759 |  |  |  | 16 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Goldman Sachs |  | Single |  |  | n/a |  |  |  | 1,000 |  |  |  | 1,139 |  |  |  | 139 |  |  | BB+ |  |  | 1 |  |  | None |  | None
Stifel Financial |  | Single |  |  | n/a |  |  |  | 4,500 |  |  |  | 4,651 |  |  |  | 151 |  |  | BBB- |  |  | 1 |  |  | None |  | None
Total |  |  |  |  |  |  |  | $ | 16,085 |  |  | $ | 16,336 |  |  | $ | 251 |  |  |  |  |  |  |  |  |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] | Credit Loss Portion of OTTI Recognized in Earnings on Debt Securities
|  | Six Months Ended June 30, 2014 |  |  | Year Ended December 31, 2013 |
|  | (in thousands) |
Balance of credit-related OTTI at January 1, |  | $ | — |  |  | $ | 4,450 |
Addition: |  |  |  |  |  |  |  |
Credit losses on investment securities for which other-than-temporary impairment was not previously recognized |  |  | — |  |  |  | 652 |
Reduction: |  |  |  |  |  |  |  |
Credit losses on investment securities sold during the period |  |  | — |  |  |  | (5,102 | )
Balance of credit-related OTTI at period end |  | $ | — |  |  | $ | — |
Schedule of Unrealized Loss on Investments [Table Text Block] | The following tables indicate gross unrealized losses not recognized in income and fair value, aggregated by investment category and the length of time individual securities have been in a continuous unrealized loss position at June 30, 2014 and December 31, 2013:
|  | June 30, 2014 |
|  | Total |  |  | Less than 12 Months |  |  | 12 Months or Longer |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (in thousands) |
Investment Securities Available-for-Sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 9,472 |  |  | $ | (136 | ) |  | $ | — |  |  | $ | — |  |  | $ | 9,472 |  |  | $ | (136 | )
Federal agency obligations |  |  | 8,093 |  |  |  | (111 | ) |  |  | 3,949 |  |  |  | (37 | ) |  |  | 4,144 |  |  |  | (74 | )
Residential mortgage pass-through securities |  |  | 3,698 |  |  |  | (13 | ) |  |  | 448 |  |  |  | (1 | ) |  |  | 3,250 |  |  |  | (12 | )
Commercial mortgage pass-through securities |  |  | 3,021 |  |  |  | (51 | ) |  |  | — |  |  |  | — |  |  |  | 3,021 |  |  |  | (51 | )
Trust preferred securities |  |  | 1,335 |  |  |  | (239 | ) |  |  | — |  |  |  | — |  |  |  | 1,335 |  |  |  | (239 | )
Corporate bonds and notes |  |  | 7,410 |  |  |  | (43 | ) |  |  | 5,445 |  |  |  | (25 | ) |  |  | 1,965 |  |  |  | (18 | )
Certificates of deposit |  |  | 217 |  |  |  | (5 | ) |  |  | 217 |  |  |  | (5 | ) |  |  | — |  |  |  | — |
Equity securities |  |  | 294 |  |  |  | (83 | ) |  |  | — |  |  |  | — |  |  |  | 294 |  |  |  | (83 | )
Mutual funds and money market funds |  |  | 5,401 |  |  |  | (100 | ) |  |  | 4,413 |  |  |  | (89 | ) |  |  | 988 |  |  |  | (11 | )
Total |  |  | 38,941 |  |  |  | (781 | ) |  |  | 14,472 |  |  |  | (157 | ) |  |  | 24,469 |  |  |  | (624 | )
Investment Securities Held-to-Maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Federal agency obligations |  |  | 1,757 |  |  |  | (19 | ) |  |  | 1,757 |  |  |  | (19 | ) |  |  | — |  |  |  | — |
Residential mortgage pass-through securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Commercial mortgage pass-through securities |  |  | 1,409 |  |  |  | (18 | ) |  |  | — |  |  |  | — |  |  |  | 1,409 |  |  |  | (18 | )
Obligations of U.S. states and political subdivisions |  |  | 33,586 |  |  |  | (410 | ) |  |  | 13,955 |  |  |  | (48 | ) |  |  | 19,631 |  |  |  | (362 | )
Total |  |  | 36,752 |  |  |  | (447 | ) |  |  | 15,712 |  |  |  | (67 | ) |  |  | 21,040 |  |  |  | (380 | )
Total Temporarily Impaired Securities |  | $ | 75,693 |  |  | $ | (1,228 | ) |  | $ | 30,184 |  |  | $ | (224 | ) |  | $ | 45,509 |  |  | $ | (1,004 | )
|  | December 31, 2013 |
|  | Total |  |  | Less than 12 Months |  |  | 12 Months or Longer |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (in thousands) |
Investment Securities Available-for-Sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 13,519 |  |  | $ | (825 | ) |  | $ | 13,519 |  |  | $ | (825 | ) |  | $ | — |  |  | $ | — |
Federal agency obligation |  |  | 17,200 |  |  |  | (655 | ) |  |  | 17,200 |  |  |  | (655 | ) |  |  | — |  |  |  | — |
Residential mortgage pass-through securities |  |  | 18,293 |  |  |  | (229 | ) |  |  | 18,293 |  |  |  | (229 | ) |  |  | — |  |  |  | — |
Commercial mortgage pass-through securities |  |  | 2,924 |  |  |  | (157 | ) |  |  | 2,924 |  |  |  | (157 | ) |  |  | — |  |  |  | — |
Obligations of U.S. states and political subdivisions |  |  | 4,199 |  |  |  | (55 | ) |  |  | 4,199 |  |  |  | (55 | ) |  |  | — |  |  |  | — |
Trust preferred securities |  |  | 5,306 |  |  |  | (510 | ) |  |  | 4,031 |  |  |  | (211 | ) |  |  | 1,275 |  |  |  | (299 | )
Corporate bonds and notes |  |  | 32,498 |  |  |  | (482 | ) |  |  | 30,533 |  |  |  | (448 | ) |  |  | 1,965 |  |  |  | (34 | )
Certificates of deposit |  |  | 552 |  |  |  | (20 | ) |  |  | 552 |  |  |  | (20 | ) |  |  | — |  |  |  | — |
Equity securities |  |  | 287 |  |  |  | (89 | ) |  |  | — |  |  |  | — |  |  |  | 287 |  |  |  | (89 | )
Mutual funds and money market funds |  |  | 985 |  |  |  | (15 | ) |  |  | — |  |  |  | — |  |  |  | 985 |  |  |  | (15 | )
Total |  |  | 95,763 |  |  |  | (3,037 | ) |  |  | 91,251 |  |  |  | (2,600 | ) |  |  | 4,512 |  |  |  | (437 | )
Investment Securities Held-to-Maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 27,037 |  |  | $ | (1,019 | ) |  | $ | 27,037 |  |  | $ | (1,019 | ) |  | $ | — |  |  | $ | — |
Federal agency obligation |  |  | 13,492 |  |  |  | (389 | ) |  |  | 13,197 |  |  |  | (388 | ) |  |  | 295 |  |  |  | (1 | )
Residential mortgage pass-through securities |  |  | 2,182 |  |  |  | (64 | ) |  |  | 2,182 |  |  |  | (64 | ) |  |  | — |  |  |  | — |
Commercial mortgage pass-through securities |  |  | 1,395 |  |  |  | (62 | ) |  |  | 1,395 |  |  |  | (62 | ) |  |  | — |  |  |  | — |
Obligations of U.S. states and political subdivisions |  |  | 66,034 |  |  |  | (3,688 | ) |  |  | 57,072 |  |  |  | (2,957 | ) |  |  | 8,962 |  |  |  | (731 | )
Corporate bonds and notes |  |  | 27,210 |  |  |  | (622 | ) |  |  | 27,210 |  |  |  | (622 | ) |  |  | — |  |  |  | — |
Total |  |  | 137,350 |  |  |  | (5,844 | ) |  |  | 128,093 |  |  |  | (5,112 | ) |  |  | 9,257 |  |  |  | (732 | )
Total Temporarily Impaired Securities |  | $ | 233,113 |  |  | $ | (8,881 | ) |  | $ | 219,344 |  |  | $ | (7,712 | ) |  | $ | 13,769 |  |  | $ | (1,169 | )

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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + 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 + Details
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- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
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