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Condensed Financial Information - Parent Company Only (Statements Of Cash Flow) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Cash flows from operating activities: |  |  |  |  |  |  |  |
Net income |  | $ 3,468 | $ 3,931 | $ 3,873 | $ 3,881 | $ 15,153 | $ 14,613 | $ 13,183
Adjustments to reconcile net income to net cash (used in) provided by operating activities: |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  | 1,710 | 1,629 | 1,504
Recognition of stock based expense |  |  |  |  |  | 711 | 418 | 265
Net change in other assets |  |  |  |  |  | 2 | 5,951 | (998)
Net change in other liabilities |  |  |  |  |  | 361 | 546 | (139)
Net cash provided by operating activities |  |  |  |  |  | 20,331 | 15,531 | 21,560
Cash flows from investing activities: |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  | (1,866) | (2,002) | (2,394)
Net cash used in investing activities |  |  |  |  |  | (127,983) | (70,150) | (100,638)
Cash flows from financing activities: |  |  |  |  |  |  |  |
Purchases of treasury stock |  |  |  |  |  | (24) | (8) | (24)
Proceeds from stock option exercises |  |  |  |  |  | 1,127 | 616 | 461
Dividend paid |  |  |  |  |  | (6,040) | (5,362) | (4,915)
Net cash used in financing activities |  |  |  |  |  | 107,572 | 55,219 | 73,286
Net (decrease) increase in cash |  |  |  |  |  | (80) | 600 | (5,792)
Cash and cash equivalents at beginning of year |  |  |  |  | 9,800 | 9,800 | 9,200 | 14,992
Cash and cash equivalents at end of year |  | 9,720 |  |  |  | 9,720 | 9,800 | 9,200
Parent Company [Member] |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 15,153 | 14,613 | 13,183
Adjustments to reconcile net income to net cash (used in) provided by operating activities: |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  | 1 |  | 1
Recognition of stock based expense |  |  |  |  |  | 711 | 418 | 265
Net change in other assets |  |  |  |  |  | (281) | (189) | 331
Net change in other liabilities |  |  |  |  |  | 423 | 415 | 389
Equity in undistributed earnings of subsidiaries | [1] |  |  |  |  | (11,272) | (10,141) | (9,468)
Net cash provided by operating activities |  |  |  |  |  | 4,735 | 5,116 | 4,701
Cash flows from investing activities: |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  | (1) | (1) | (1)
Net cash used in investing activities |  |  |  |  |  | (1) | (1) | (1)
Cash flows from financing activities: |  |  |  |  |  |  |  |
Purchases of treasury stock |  |  |  |  |  | (24) | (8) | (24)
Proceeds from stock option exercises |  |  |  |  |  | 1,127 | 616 | 461
Dividend paid |  |  |  |  |  | (6,040) | (5,362) | (4,915)
Net cash used in financing activities |  |  |  |  |  | (4,937) | (4,754) | (4,478)
Net (decrease) increase in cash |  |  |  |  |  | (203) | 361 | 222
Cash and cash equivalents at beginning of year |  |  |  |  | $ 1,121 | 1,121 | 760 | 538
Cash and cash equivalents at end of year |  | $ 918 |  |  |  | $ 918 | $ 1,121 | $ 760
[1] | Amount in parentheses represents the excess of dividends over net income subsidiaries.

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