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Investments (Tables) | 9 Months Ended
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Sep. 30, 2014
Investments [Abstract] |
Schedule of Amortized Cost and Estimated Fair Value of Investment Securities |
Amortized Cost And Estimated Fair Value
The amortized cost and estimated fair value of investment securities available-for-sale are as follows (dollars in thousands, unaudited): |  |  |  |  |  |  |  |  |  |  |  |
|  | September 30, 2014 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
US Government agencies |  | $ | 4,464 |  |  | $ | 6 |  |  | $ | (81 | ) |  | $ | 4,389 |
Mortgage-backed securities |  |  | 359,954 |  |  |  | 3,804 |  |  |  | (1,644 | ) |  |  | 362,114 |
State and poltical subdivisions |  |  | 96,199 |  |  |  | 2,923 |  |  |  | (499 | ) |  |  | 98,623 |
Equity securities |  |  | 1,373 |  |  |  | 1,189 |  |  |  | - |  |  |  | 2,562 |
Total investment securities |  | $ | 461,990 |  |  | $ | 7,922 |  |  | $ | (2,224 | ) |  | $ | 467,688 |
|  | December 31, 2013 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
US Government agencies |  | $ | 5,395 |  |  | $ | 18 |  |  | $ | (109 | ) |  | $ | 5,304 |
Mortgage-backed securities |  |  | 320,223 |  |  |  | 3,269 |  |  |  | (2,771 | ) |  |  | 320,721 |
State and political subdivisons |  |  | 97,361 |  |  |  | 1,723 |  |  |  | (2,521 | ) |  |  | 96,563 |
Equity securities |  |  | 1,336 |  |  |  | 1,120 |  |  |  | - |  |  |  | 2,456 |
Total investment securities |  | $ | 424,315 |  |  | $ | 6,130 |  |  | $ | (5,401 | ) |  | $ | 425,044 |
Schedule of Investment Securities with Unrealized Losses |
Investment Portfolio - Unrealized Losses |  |  |  |  |  |  |  |  |  |  |  |
(dollars in thousands, unaudited) |  | September 30, 2014 |
|  | Less than Twelve Months |  |  | Over Twelve Months |
|  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |
US Government agencies |  | $ | (19 | ) |  | $ | 1,260 |  |  | $ | (62 | ) |  | $ | 1,937 |
Mortgage-backed securities |  |  | (576 | ) |  |  | 99,447 |  |  |  | (1,068 | ) |  |  | 68,444 |
State and political subdivisions |  |  | (10 | ) |  |  | 2,451 |  |  |  | (489 | ) |  |  | 23,571 |
Other securities |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | (605 | ) |  | $ | 103,158 |  |  | $ | (1,619 | ) |  | $ | 93,952 |
|  | December 31, 2013 |
|  | Less than Twelve Months |  |  | Over Twelve Months |
|  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |
US Government agencies |  | $ | (92 | ) |  | $ | 1,913 |  |  | $ | (17 | ) |  | $ | 1,920 |
Mortgage-backed securities |  |  | (642 | ) |  |  | 21,747 |  |  |  | (2,129 | ) |  |  | 124,317 |
State and political subdivisions |  |  | (461 | ) |  |  | 6,799 |  |  |  | (2,060 | ) |  |  | 38,083 |
Other securities |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | (1,195 | ) |  | $ | 30,459 |  |  | $ | (4,206 | ) |  | $ | 164,320 |
Schedule of Gross Realized Gains, Losses and Gross Proceeds |
Investment Portfolio - Realized Gains/(Losses) |  |  |  |  |  |  |  |  |  |  |  |
(dollars in thousands, unaudited) |  |  |  |  |  |  |  |  |  |  |  |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Proceeds from sales of securities available for sale |  | $ | - |  |  | $ | - |  |  | $ | 8,360 |  |  | $ | 723 |
Gross gains on sale of securities available for sale |  | $ | - |  |  | $ | - |  |  | $ | 289 |  |  | $ | 6 |
Gross losses on sale of securities available for sale |  |  | - |  |  |  | - |  |  |  | (2 | ) |  |  | - |
Net gains on sale of securities available for sale |  | $ | - |  |  | $ | - |  |  | $ | 287 |  |  | $ | 6 |
Schedule of Contractual Maturities |
Estimated Fair Value of Contractual Maturities |  |  |  |  |  |
(dollars in thousands, unaudited) |  | September 30, 2014 |
|  | Amortized Cost |  |  | Fair Value |
Maturing within one year |  | $ | 1,204 |  |  | $ | 1,212 |
Maturing after one year through five years |  |  | 213,652 |  |  |  | 216,249 |
Maturing after five years through ten years |  |  | 76,629 |  |  |  | 77,761 |
Maturing after ten years |  |  | 50,748 |  |  |  | 51,294 |
Investment securities not due at a single maturity date: |  |  |  |  |  |  |  |
U.S Government agencies collateralized by |  |  |  |  |  |  |  |
mortgage obligations |  |  | 118,384 |  |  |  | 118,610 |
Other securities |  |  | 1,373 |  |  |  | 2,562 |
|  | $ | 461,990 |  |  | $ | 467,688 |
|  | December 31, 2013 |
|  | Amortized Cost |  |  | Fair Value |
Maturing within one year |  | $ | 2,294 |  |  | $ | 2,316 |
Maturing after one year through five years |  |  | 241,396 |  |  |  | 242,493 |
Maturing after five years through ten years |  |  | 59,572 |  |  |  | 59,402 |
Maturing after ten years |  |  | 49,674 |  |  |  | 47,737 |
Investment securities not due at a single maturity date: |  |  |  |  |  |  |  |
U.S Government agencies collateralized by |  |  |  |  |  |  |  |
mortgage obligations |  |  | 70,043 |  |  |  | 70,640 |
Other securities |  |  | 1,336 |  |  |  | 2,456 |
|  | $ | 424,315 |  |  | $ | 425,044 |
Schedule of Revenue and General Obligation Bonds by Location |
Revenue and General Obligation Bonds by Location |  |  |  |  |  |  |  |  |
dollars in thousands, unaudited |  | September 30, 2014 |  |  | December 31, 2013 |
|  | Amortized |  |  | Fair Market |  |  | Amortized |  |  | Fair Market |
General obligation bonds |  | Cost |  |  | Value |  |  | Cost |  |  | Value |
State of issuance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
California |  | $ | 20,026 |  |  | $ | 21,219 |  |  | $ | 20,638 |  |  | $ | 21,272 |
Texas |  |  | 12,831 |  |  |  | 12,958 |  |  |  | 11,340 |  |  |  | 11,024 |
Illinois |  |  | 8,287 |  |  |  | 8,392 |  |  |  | 8,965 |  |  |  | 8,702 |
Ohio |  |  | 7,640 |  |  |  | 7,703 |  |  |  | 7,659 |  |  |  | 7,485 |
Washington |  |  | 5,981 |  |  |  | 6,109 |  |  |  | 5,487 |  |  |  | 5,340 |
Arizona |  |  | 2,077 |  |  |  | 2,417 |  |  |  | 2,100 |  |  |  | 2,050 |
Other states |  |  | 19,776 |  |  |  | 19,930 |  |  |  | 20,666 |  |  |  | 20,429 |
Total General Obligation Bonds |  |  | 76,618 |  |  |  | 78,728 |  |  |  | 76,855 |  |  |  | 76,302 |
Revenue bonds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State of issuance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Arizona |  |  | 4,617 |  |  |  | 4,508 |  |  |  | 4,700 |  |  |  | 4,341 |
Texas |  |  | 3,284 |  |  |  | 3,394 |  |  |  | 2,762 |  |  |  | 2,719 |
California |  |  | 2,219 |  |  |  | 2,284 |  |  |  | 2,519 |  |  |  | 2,579 |
Washington |  |  | 1,168 |  |  |  | 1,204 |  |  |  | 1,170 |  |  |  | 1,211 |
Ohio |  |  | 322 |  |  |  | 335 |  |  |  | 324 |  |  |  | 339 |
Other states |  |  | 7,971 |  |  |  | 8,170 |  |  |  | 6,758 |  |  |  | 6,742 |
Total Revenue Bonds |  |  | 19,581 |  |  |  | 19,895 |  |  |  | 18,233 |  |  |  | 17,931 |
Certificates of participation (All California) |  |  | - |  |  |  | - |  |  |  | 2,273 |  |  |  | 2,330 |
Total Obligations of States |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
and Political Subdivisions |  | $ | 96,199 |  |  | $ | 98,623 |  |  | $ | 97,361 |  |  | $ | 96,563 |
Schedule of Revenue Bonds by Type |
Revenue Bonds by Type |  |  |  |  |  |
dollars in thousands, unaudited |  | September 30, 2014 |  |  | December 31, 2013 |
|  | Amortized |  |  | Fair Market |  |  | Amortized |  |  | Fair Market |
Revenue bonds |  | Cost |  |  | Value |  |  | Cost |  |  | Value |
Revenue source: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Water |  | $ | 8,010 |  |  | $ | 8,010 |  |  | $ | 7,409 |  |  | $ | 7,144 |
College & University |  |  | 2,731 |  |  |  | 2,840 |  |  |  | 2,203 |  |  |  | 2,187 |
Electric & Power |  |  | 1,882 |  |  |  | 1,921 |  |  |  | 1,888 |  |  |  | 1,895 |
Sales Tax |  |  | 1,672 |  |  |  | 1,715 |  |  |  | 1,673 |  |  |  | 1,688 |
Lease |  |  | 1,356 |  |  |  | 1,344 |  |  |  | 1,155 |  |  |  | 1,063 |
Other sources |  |  | 3,930 |  |  |  | 4,065 |  |  |  | 3,905 |  |  |  | 3,954 |
Total Revenue Bonds |  | $ | 19,581 |  |  | $ | 19,895 |  |  | $ | 18,233 |  |  | $ | 17,931 |

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