Loans, Impaired Financing Receivable (Details) (USD $) | 9 Months Ended | 12 Months Ended |
In Thousands, unless otherwise specified | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | $33,452 | $27,110 | $36,744 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 10,744 | 26,583 | 16,526 |
Unpaid Contractual Principal Balance, Total | 44,196 | 53,693 | 53,270 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 25,507 | 21,727 | 31,289 |
Impaired Balance With An Allowance Recorded | 9,916 | 24,132 | 13,975 |
Impaired Balance, Total | 35,423 | 45,859 | 45,264 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 1,077 | 3,216 | 2,299 |
Related Allowance Total | 1,077 | 3,216 | 2,299 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 29,510 | 14,605 | 24,209 |
Average Recorded Investment With An Allowance Recorded | 11,353 | 16,782 | 22,112 |
Average Recorded Investment, Total | 40,863 | 31,387 | 46,321 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 572 | 292 | 797 |
Interest Income Recognized With An Allowance Recorded | 216 | 410 | 243 |
Interest Income Recognized, Total | 788 | 702 | 1,040 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 638 | 316 | 802 |
Interest Income Collected With An Allowance Recorded | 220 | 415 | 240 |
Interest Income Collected, Total | 858 | 731 | 1,042 |
Commercial [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 394 | 266 | 305 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 99 | 1,465 | 1,453 |
Unpaid Contractual Principal Balance, Total | 493 | 1,731 | 1,758 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 394 | 265 | 305 |
Impaired Balance With An Allowance Recorded | 99 | 1,465 | 1,453 |
Impaired Balance, Total | 493 | 1,730 | 1,758 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 99 | 108 | 434 |
Related Allowance Total | 99 | 108 | 434 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 803 | 98 | 216 |
Average Recorded Investment With An Allowance Recorded | 527 | 1,280 | 1,689 |
Average Recorded Investment, Total | 1,330 | 1,378 | 1,905 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 6 | 11 | 24 |
Interest Income Recognized With An Allowance Recorded | 0 | 14 | 15 |
Interest Income Recognized, Total | 6 | 25 | 39 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 14 | 14 | 25 |
Interest Income Collected With An Allowance Recorded | 0 | 19 | 21 |
Interest Income Collected, Total | 14 | 33 | 46 |
Agricultural [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 50 | 0 | 0 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 0 | 0 | 0 |
Unpaid Contractual Principal Balance, Total | 50 | 0 | 0 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 45 | 0 | 0 |
Impaired Balance With An Allowance Recorded | 0 | 0 | 0 |
Impaired Balance, Total | 45 | 0 | 0 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 0 | 0 | 0 |
Related Allowance Total | 0 | 0 | 0 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 53 | 13 | 10 |
Average Recorded Investment With An Allowance Recorded | 0 | 0 | 0 |
Average Recorded Investment, Total | 53 | 13 | 10 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | -4 | 0 | 0 |
Interest Income Recognized With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized, Total | -4 | 0 | 0 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 6 | 0 | 0 |
Interest Income Collected With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected, Total | 6 | 0 | 0 |
Commercial Construction [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 9,210 | 8,335 | 7,856 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 210 | 5,924 | 5,923 |
Unpaid Contractual Principal Balance, Total | 9,420 | 14,259 | 13,779 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 3,101 | 5,010 | 4,750 |
Impaired Balance With An Allowance Recorded | 139 | 3,473 | 3,472 |
Impaired Balance, Total | 3,240 | 8,483 | 8,222 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 59 | 573 | 830 |
Related Allowance Total | 59 | 573 | 830 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 3,347 | 2,220 | 4,106 |
Average Recorded Investment With An Allowance Recorded | 1,993 | 4,386 | 5,025 |
Average Recorded Investment, Total | 5,340 | 6,606 | 9,131 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 2 | 17 | 35 |
Interest Income Recognized With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized, Total | 2 | 17 | 35 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 2 | 23 | 41 |
Interest Income Collected With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected, Total | 2 | 23 | 41 |
Residential Construction [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 0 | 0 | 0 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 0 | 0 | 0 |
Unpaid Contractual Principal Balance, Total | 0 | 0 | 0 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 0 | 0 | 0 |
Impaired Balance With An Allowance Recorded | 0 | 0 | 0 |
Impaired Balance, Total | 0 | 0 | 0 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 0 | 0 | 0 |
Related Allowance Total | 0 | 0 | 0 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 0 | 0 | 0 |
Average Recorded Investment With An Allowance Recorded | 0 | 0 | 0 |
Average Recorded Investment, Total | 0 | 0 | 0 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized, Total | 0 | 0 | 0 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected, Total | 0 | 0 | 0 |
Commercial Real Estate [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 17,346 | 8,559 | 20,121 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 5,931 | 15,061 | 5,874 |
Unpaid Contractual Principal Balance, Total | 23,277 | 23,620 | 25,995 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 16,656 | 8,064 | 19,253 |
Impaired Balance With An Allowance Recorded | 5,931 | 15,061 | 5,874 |
Impaired Balance, Total | 22,587 | 23,125 | 25,127 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 283 | 1,559 | 424 |
Related Allowance Total | 283 | 1,559 | 424 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 19,058 | 8,493 | 13,199 |
Average Recorded Investment With An Allowance Recorded | 6,508 | 7,785 | 11,072 |
Average Recorded Investment, Total | 25,566 | 16,278 | 24,271 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 427 | 95 | 494 |
Interest Income Recognized With An Allowance Recorded | 142 | 287 | 157 |
Interest Income Recognized, Total | 569 | 382 | 651 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 445 | 113 | 504 |
Interest Income Collected With An Allowance Recorded | 143 | 285 | 148 |
Interest Income Collected, Total | 588 | 398 | 652 |
Residential Real Estate [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 4,729 | 7,378 | 7,837 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 4,106 | 2,804 | 1,949 |
Unpaid Contractual Principal Balance, Total | 8,835 | 10,182 | 9,786 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 3,953 | 5,830 | 6,362 |
Impaired Balance With An Allowance Recorded | 3,349 | 2,804 | 1,849 |
Impaired Balance, Total | 7,302 | 8,634 | 8,211 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 605 | 774 | 526 |
Related Allowance Total | 605 | 774 | 526 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 5,054 | 2,022 | 4,564 |
Average Recorded Investment With An Allowance Recorded | 1,751 | 3,331 | 3,662 |
Average Recorded Investment, Total | 6,805 | 5,353 | 8,226 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 150 | 157 | 224 |
Interest Income Recognized With An Allowance Recorded | 66 | 65 | 26 |
Interest Income Recognized, Total | 216 | 222 | 250 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 142 | 152 | 209 |
Interest Income Collected With An Allowance Recorded | 70 | 64 | 24 |
Interest Income Collected, Total | 212 | 216 | 233 |
Farmland [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 1,330 | 2,277 | 303 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 398 | 1,329 | 1,327 |
Unpaid Contractual Principal Balance, Total | 1,728 | 3,606 | 1,630 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 984 | 2,277 | 303 |
Impaired Balance With An Allowance Recorded | 398 | 1,329 | 1,327 |
Impaired Balance, Total | 1,382 | 3,606 | 1,630 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 31 | 202 | 85 |
Related Allowance Total | 31 | 202 | 85 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 782 | 1,618 | 1,859 |
Average Recorded Investment With An Allowance Recorded | 574 | 0 | 664 |
Average Recorded Investment, Total | 1,356 | 1,618 | 2,523 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | -19 | 0 | 1 |
Interest Income Recognized With An Allowance Recorded | 8 | 44 | 45 |
Interest Income Recognized, Total | -11 | 44 | 46 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 11 | 0 | 1 |
Interest Income Collected With An Allowance Recorded | 7 | 47 | 47 |
Interest Income Collected, Total | 18 | 47 | 48 |
Consumer [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 181 | 295 | 313 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 0 | 0 | 0 |
Unpaid Contractual Principal Balance, Total | 181 | 295 | 313 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 173 | 281 | 307 |
Impaired Balance With An Allowance Recorded | 0 | 0 | 0 |
Impaired Balance, Total | 173 | 281 | 307 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 0 | 0 | 0 |
Related Allowance Total | 0 | 0 | 0 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 215 | 141 | 253 |
Average Recorded Investment With An Allowance Recorded | 0 | 0 | 0 |
Average Recorded Investment, Total | 215 | 141 | 253 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 7 | 12 | 18 |
Interest Income Recognized With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized, Total | 7 | 12 | 18 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 10 | 14 | 21 |
Interest Income Collected With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected, Total | 10 | 14 | 21 |
Other [Member] | ' | ' | ' |
Unpaid Contractual Principal Balance [Abstract] | ' | ' | ' |
Unpaid Contractual Principal Balance With No Related Allowance Recorded | 212 | 0 | 9 |
Unpaid Contractual Principal Balance With An Allowance Recorded | 0 | 0 | 0 |
Unpaid Contractual Principal Balance, Total | 212 | 0 | 9 |
Impaired Balance [Abstract] | ' | ' | ' |
Impaired Balance With No Related Allowance Recorded | 201 | 0 | 9 |
Impaired Balance With An Allowance Recorded | 0 | 0 | 0 |
Impaired Balance, Total | 201 | 0 | 9 |
Related Allowance [Abstract] | ' | ' | ' |
Related Allowance - With An Allowance Recorded | 0 | 0 | 0 |
Related Allowance Total | 0 | 0 | 0 |
Average Recorded Investment [Abstract] | ' | ' | ' |
Average Recorded Investment With No Related Allowance Recorded | 198 | 0 | 2 |
Average Recorded Investment With An Allowance Recorded | 0 | 0 | 0 |
Average Recorded Investment, Total | 198 | 0 | 2 |
Interest Income Recognized [Abstract] | ' | ' | ' |
Interest Income Recognized With No Related Allowance Recorded | 3 | 0 | 1 |
Interest Income Recognized With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Recognized, Total | 3 | 0 | 1 |
Interest Income Collected [Abstract] | ' | ' | ' |
Interest Income Collected With No Related Allowance Recorded | 8 | 0 | 1 |
Interest Income Collected With An Allowance Recorded | 0 | 0 | 0 |
Interest Income Collected, Total | $8 | $0 | $1 |