Parent Only Financial Information Parent Only Statement of Cash Flows (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Cash Flows from Operating Activities: |
|
|
|
| Net Income |
$ 24,662
|
$ 23,360
|
$ 21,795
|
| Gains on the Sale of Securities Available-for-Sale |
172
|
137
|
527
|
| Stock-Based Compensation Expense |
308
|
360
|
372
|
| Stock-Based Compensation Expense |
308
|
360
|
372
|
| Net Cash Provided By Operating Activities |
28,926
|
30,641
|
36,673
|
| Cash Flows from Investing Activities: |
|
|
|
| Proceeds from the Sale of Securities Available-for-Sale |
66,551
|
49,928
|
16,295
|
| Purchases of Securities Available-for-Sale |
(201,820)
|
(113,953)
|
(136,416)
|
| Net Cash Used In Investing Activities |
(229,539)
|
(67,693)
|
(149,015)
|
| Cash Flows from Financing Activities: |
|
|
|
| Stock Options Exercised |
918
|
1,454
|
1,254
|
| Shares Issued Under the Employee Stock Purchase Plan |
494
|
488
|
477
|
| Shares Issued for Dividend Reinvestment Plans |
886
|
0
|
1,280
|
| Tax Benefit from Exercise of Stock Options |
59
|
25
|
23
|
| Purchases of Treasury Stock |
(1,498)
|
(2,455)
|
(1,709)
|
| Cash Dividends Paid |
(12,700)
|
(12,407)
|
(12,109)
|
| Net Cash Provided By Financing Activities |
205,386
|
33,367
|
113,490
|
| Net Increase (Decrease) in Cash and Cash Equivalents |
4,773
|
(3,685)
|
1,148
|
| Cash and Cash Equivalents at Beginning of Year |
46,295
|
49,980
|
48,832
|
| Cash and Cash Equivalents at End of Year |
51,068
|
46,295
|
49,980
|
| Interest on Deposits and Borrowings |
4,856
|
5,932
|
8,067
|
| Shares Issued for Acquisition of Subsidiary |
0
|
91
|
233
|
| Parent Company [Member] |
|
|
|
| Cash Flows from Operating Activities: |
|
|
|
| Net Income |
24,662
|
23,360
|
21,795
|
| Undistributed Net Income of Subsidiaries |
(11,509)
|
(10,344)
|
(9,155)
|
| Stock-Based Compensation Expense |
227
|
197
|
198
|
| Stock-Based Compensation Expense |
308
|
360
|
372
|
| Changes in Other Assets and Other Liabilities |
(1,419)
|
(1,014)
|
(990)
|
| Net Cash Provided By Operating Activities |
12,269
|
12,559
|
12,220
|
| Cash Flows from Investing Activities: |
|
|
|
| Proceeds from the Sale of Securities Available-for-Sale |
47
|
45
|
45
|
| Purchases of Securities Available-for-Sale |
(47)
|
(45)
|
(45)
|
| Net Cash Used In Investing Activities |
0
|
0
|
0
|
| Cash Flows from Financing Activities: |
|
|
|
| Stock Options Exercised |
918
|
1,454
|
1,254
|
| Shares Issued Under the Employee Stock Purchase Plan |
494
|
488
|
477
|
| Shares Issued for Dividend Reinvestment Plans |
(886)
|
0
|
(1,280)
|
| Tax Benefit from Exercise of Stock Options |
59
|
25
|
23
|
| Purchases of Treasury Stock |
(1,498)
|
(2,455)
|
(1,709)
|
| Cash Dividends Paid |
(12,700)
|
(12,407)
|
(12,109)
|
| Net Cash Provided By Financing Activities |
(11,841)
|
(12,895)
|
(10,784)
|
| Net Increase (Decrease) in Cash and Cash Equivalents |
428
|
(336)
|
1,436
|
| Cash and Cash Equivalents at Beginning of Year |
3,013
|
3,349
|
1,913
|
| Cash and Cash Equivalents at End of Year |
3,441
|
3,013
|
3,349
|
| Interest on Deposits and Borrowings |
619
|
620
|
640
|
| Shares Issued for Acquisition of Subsidiary |
$ 0
|
$ 91
|
$ 233
|