|
Securities (Tables)
|
6 Months Ended |
|
Jun. 30, 2012
|
| Securities [Abstract] |
|
| Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities |
| |
|
|
|
|
|
|
|
|
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| |
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Amortized |
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|
Gross Unrealized |
|
|
Estimated Fair |
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| |
|
Cost |
|
|
Gains |
|
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(Losses) |
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|
Value |
|
|
June 30, 2012
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. government and agency securities
|
|
$ |
3,264 |
|
|
$ |
312 |
|
|
$ |
— |
|
|
$ |
3,576 |
|
|
Obligations of states and political subdivisions
|
|
|
194,203 |
|
|
|
13,781 |
|
|
|
(202 |
) |
|
|
207,782 |
|
|
Corporate and other bonds
|
|
|
9,503 |
|
|
|
308 |
|
|
|
(420 |
) |
|
|
9,391 |
|
|
Mortgage-backed securities
|
|
|
393,954 |
|
|
|
9,838 |
|
|
|
(281 |
) |
|
|
403,511 |
|
|
Other securities
|
|
|
3,183 |
|
|
|
100 |
|
|
|
— |
|
|
|
3,283 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities
|
|
$ |
604,107 |
|
|
$ |
24,339 |
|
|
$ |
(903 |
) |
|
$ |
627,543 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2011
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. government and agency securities
|
|
$ |
3,933 |
|
|
$ |
351 |
|
|
$ |
— |
|
|
$ |
4,284 |
|
|
Obligations of states and political subdivisions
|
|
|
189,117 |
|
|
|
11,337 |
|
|
|
(247 |
) |
|
|
200,207 |
|
|
Corporate and other bonds
|
|
|
12,839 |
|
|
|
188 |
|
|
|
(787 |
) |
|
|
12,240 |
|
|
Mortgage-backed securities
|
|
|
390,329 |
|
|
|
10,434 |
|
|
|
(445 |
) |
|
|
400,318 |
|
|
Other securities
|
|
|
3,044 |
|
|
|
77 |
|
|
|
(4 |
) |
|
|
3,117 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities
|
|
$ |
599,262 |
|
|
$ |
22,387 |
|
|
$ |
(1,483 |
) |
|
$ |
620,166 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of gross unrealized losses and fair value of investments |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Less than 12 months |
|
|
More than 12 months |
|
|
Total |
|
| |
|
Fair value |
|
|
Unrealized
Losses |
|
|
Fair
value |
|
|
Unrealized
Losses |
|
|
Fair value |
|
|
Unrealized
Losses |
|
|
June 30, 2012
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Obligations of states and political subdivisions
|
|
$ |
10,060 |
|
|
$ |
(132 |
) |
|
$ |
1,484 |
|
|
$ |
(70 |
) |
|
$ |
11,544 |
|
|
$ |
(202 |
) |
|
Mortgage-backed securities
|
|
|
60,822 |
|
|
|
(281 |
) |
|
|
— |
|
|
|
— |
|
|
|
60,822 |
|
|
|
(281 |
) |
|
Corporate bonds and other securities
|
|
|
100 |
|
|
|
— |
|
|
|
1,447 |
|
|
|
(420 |
) |
|
|
1,547 |
|
|
|
(420 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Totals
|
|
$ |
70,982 |
|
|
$ |
(413 |
) |
|
$ |
2,931 |
|
|
$ |
(490 |
) |
|
$ |
73,913 |
|
|
$ |
(903 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2011
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Obligations of states and political subdivisions
|
|
$ |
5,429 |
|
|
$ |
(152 |
) |
|
$ |
1,090 |
|
|
$ |
(95 |
) |
|
$ |
6,519 |
|
|
$ |
(247 |
) |
|
Mortgage-backed securities
|
|
|
97,203 |
|
|
|
(445 |
) |
|
|
— |
|
|
|
— |
|
|
|
97,203 |
|
|
|
(445 |
) |
|
Corporate bonds and other securities
|
|
|
2,342 |
|
|
|
(165 |
) |
|
|
3,790 |
|
|
|
(626 |
) |
|
|
6,132 |
|
|
|
(791 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Totals
|
|
$ |
104,974 |
|
|
$ |
(762 |
) |
|
$ |
4,880 |
|
|
$ |
(721 |
) |
|
$ |
109,854 |
|
|
$ |
(1,483 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of amortized cost and estimated fair value of securities |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
June 30, 2012 |
|
|
December 31, 2011 |
|
| |
|
Amortized |
|
|
Estimated |
|
|
Amortized |
|
|
Estimated |
|
| |
|
Cost |
|
|
Fair Value |
|
|
Cost |
|
|
Fair Value |
|
|
Due in one year or less
|
|
$ |
5,611 |
|
|
$ |
5,683 |
|
|
$ |
6,046 |
|
|
$ |
6,098 |
|
|
Due after one year through five years
|
|
|
17,735 |
|
|
|
18,498 |
|
|
|
18,771 |
|
|
|
19,408 |
|
|
Due after five years through ten years
|
|
|
70,786 |
|
|
|
75,127 |
|
|
|
76,044 |
|
|
|
80,214 |
|
|
Due after ten years
|
|
|
506,792 |
|
|
|
524,952 |
|
|
|
495,357 |
|
|
|
511,329 |
|
|
Other securities
|
|
|
3,183 |
|
|
|
3,283 |
|
|
|
3,044 |
|
|
|
3,117 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities available for sale
|
|
$ |
604,107 |
|
|
$ |
627,543 |
|
|
$ |
599,262 |
|
|
$ |
620,166 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of other-than-temporary impairment |
| |
|
|
|
|
| |
|
OTTI Losses |
|
|
Cumulative credit losses on investment securities, through December 31, 2011
|
|
$ |
400 |
|
|
Cumulative credit losses on investment securities
|
|
|
— |
|
|
Additions for credit losses not previously regognized
|
|
|
— |
|
| |
|
|
|
|
|
Cumulative credit losses on investment securities, through June 30, 2012
|
|
$ |
400 |
|
| |
|
|
|
|
|