|
Securities (Tables)
|
3 Months Ended |
|
Mar. 31, 2013
|
| Securities [Abstract] |
|
| Amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities |
| |
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Gross Unrealized |
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Amortized
Cost |
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Gains |
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(Losses) |
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Estimated
Fair Value |
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|
March 31, 2013
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|
|
|
|
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|
|
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|
|
|
|
|
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U.S. government and agency securities
|
|
$ |
2,279 |
|
|
$ |
539 |
|
|
$ |
— |
|
|
$ |
2,818 |
|
|
Obligations of states and political subdivisions
|
|
|
231,861 |
|
|
|
13,303 |
|
|
|
(1,367 |
) |
|
|
243,797 |
|
|
Corporate and other bonds
|
|
|
6,728 |
|
|
|
174 |
|
|
|
(122 |
) |
|
|
6,780 |
|
|
Mortgage-backed securities
|
|
|
319,827 |
|
|
|
7,107 |
|
|
|
(474 |
) |
|
|
326,460 |
|
|
Other securities
|
|
|
3,293 |
|
|
|
69 |
|
|
|
— |
|
|
|
3,362 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities
|
|
$ |
563,988 |
|
|
$ |
21,192 |
|
|
$ |
(1,963 |
) |
|
$ |
583,217 |
|
| |
|
|
|
|
|
|
|
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| |
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December 31, 2012
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. government and agency securities
|
|
$ |
2,581 |
|
|
$ |
268 |
|
|
$ |
— |
|
|
$ |
2,849 |
|
|
Obligations of states and political subdivisions
|
|
|
214,980 |
|
|
|
15,123 |
|
|
|
(325 |
) |
|
|
229,778 |
|
|
Corporate and other bonds
|
|
|
7,353 |
|
|
|
173 |
|
|
|
(314 |
) |
|
|
7,212 |
|
|
Mortgage-backed securities
|
|
|
335,327 |
|
|
|
7,383 |
|
|
|
(536 |
) |
|
|
342,174 |
|
|
Other securities
|
|
|
3,277 |
|
|
|
92 |
|
|
|
— |
|
|
|
3,369 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities
|
|
$ |
563,518 |
|
|
$ |
23,039 |
|
|
$ |
(1,175 |
) |
|
$ |
585,382 |
|
| |
|
|
|
|
|
|
|
|
|
|
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|
|
|
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| Schedule of gross unrealized losses and fair value of investments |
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|
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Less than 12 months |
|
|
More than 12 months |
|
|
Total |
|
| |
|
Fair
value
|
|
|
Unrealized
Losses |
|
|
Fair
value
|
|
|
Unrealized
Losses |
|
|
Fair
value
|
|
|
Unrealized
Losses |
|
|
March 31, 2013
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Obligations of states and political subdivisions
|
|
$ |
48,672 |
|
|
$ |
(1,327 |
) |
|
$ |
651 |
|
|
|
(40 |
) |
|
$ |
49,323 |
|
|
$ |
(1,367 |
) |
|
Mortgage-backed securities
|
|
|
84,264 |
|
|
|
(456 |
) |
|
|
2,829 |
|
|
|
(18 |
) |
|
|
87,093 |
|
|
|
(474 |
) |
|
Corporate bonds and other securities
|
|
|
— |
|
|
|
— |
|
|
|
1,748 |
|
|
|
(122 |
) |
|
|
1,748 |
|
|
|
(122 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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Totals
|
|
$ |
132,936 |
|
|
$ |
(1,783 |
) |
|
$ |
5,228 |
|
|
$ |
(180 |
) |
|
$ |
138,164 |
|
|
$ |
(1,963 |
) |
| |
|
|
|
|
|
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|
|
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| |
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|
December 31, 2012
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Obligations of states and political subdivisions
|
|
$ |
22,397 |
|
|
$ |
(283 |
) |
|
$ |
649 |
|
|
$ |
(42 |
) |
|
$ |
23,046 |
|
|
$ |
(325 |
) |
|
Mortgage-backed securities
|
|
|
86,183 |
|
|
|
(536 |
) |
|
|
— |
|
|
|
— |
|
|
|
86,183 |
|
|
|
(536 |
) |
|
Corporate bonds and other securities
|
|
|
— |
|
|
|
— |
|
|
|
1,555 |
|
|
|
(314 |
) |
|
|
1,555 |
|
|
|
(314 |
) |
| |
|
|
|
|
|
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|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
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Totals
|
|
$ |
108,580 |
|
|
$ |
(819 |
) |
|
$ |
2,204 |
|
|
$ |
(356 |
) |
|
$ |
110,784 |
|
|
$ |
(1,175 |
) |
| |
|
|
|
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|
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|
|
|
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|
|
|
|
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|
| Schedule of amortized cost and estimated fair value of securities |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
March 31, 2013 |
|
|
December 31, 2012 |
|
| |
|
Amortized |
|
|
Estimated |
|
|
Amortized |
|
|
Estimated |
|
| |
|
Cost |
|
|
Fair Value |
|
|
Cost |
|
|
Fair Value |
|
|
Due in one year or less
|
|
$ |
4,116 |
|
|
$ |
4,168 |
|
|
$ |
2,346 |
|
|
$ |
2,372 |
|
|
Due after one year through five years
|
|
|
15,841 |
|
|
|
16,536 |
|
|
|
16,413 |
|
|
|
17,016 |
|
|
Due after five years through ten years
|
|
|
65,056 |
|
|
|
69,379 |
|
|
|
69,164 |
|
|
|
73,501 |
|
|
Due after ten years
|
|
|
475,682 |
|
|
|
489,772 |
|
|
|
472,318 |
|
|
|
489,124 |
|
|
Other securities
|
|
|
3,293 |
|
|
|
3,362 |
|
|
|
3,277 |
|
|
|
3,369 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total securities available for sale
|
|
$ |
563,988 |
|
|
$ |
583,217 |
|
|
$ |
563,518 |
|
|
$ |
585,382 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of other-than-temporary impairment |
| |
|
|
|
|
| |
|
OTTI Losses |
|
|
Cumulative credit losses on investment securities, through December 31, 2012
|
|
$ |
400 |
|
|
Cumulative credit losses on investment securities
|
|
|
— |
|
|
Additions for credit losses not previously recognized
|
|
|
— |
|
| |
|
|
|
|
|
Cumulative credit losses on investment securities, through March 31, 2013
|
|
$ |
400 |
|
| |
|
|
|
|
|