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Parent Company Only Financial Information (Interim Condensed Statements of Cash Flows) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Operating activities |  |  |  |
Net income | $ 3,696 | $ 3,536 | $ 10,491 | $ 10,516
Adjustments to reconcile net income to cash provided by operations |  |  |  |
Share-based payment awards |  |  | 449 | 502
Depreciation |  |  | 2,198 | 2,163
Changes in operating assets and liabilities which used cash |  |  |  |
Other assets |  |  | (1,323) | (1,491)
Accrued interest and other liabilities |  |  | 456 | 897
Net cash provided by (used in) operating activities |  |  | 12,240 | 13,728
Investing activities |  |  |  |
Sales (purchases) of premises and equipment |  |  | (1,934) | (1,610)
Net cash provided by (used in) investing activities |  |  | (13,447) | (60,627)
Financing activities |  |  |  |
Cash dividends paid on common stock |  |  | (6,126) | (5,950)
Proceeds from the issuance of common stock |  |  | 5,093 | 4,999
Common stock repurchased |  |  | (6,212) | (4,005)
Common stock purchased for deferred compensation obligations |  |  | (290) | (327)
Net cash provided by (used in) financing activities |  |  | 18,911 | 45,072
Increase (decrease) in cash and cash equivalents |  |  | 17,704 | (1,827)
Cash and cash equivalents at beginning of period |  |  | 30,848 | 22,894
Cash and cash equivalents at end of period | 48,552 | 21,067 | 48,552 | 21,067
Parent Company [Member] |  |  |  |
Operating activities |  |  |  |
Net income | 3,696 | 3,536 | 10,491 | 10,516
Adjustments to reconcile net income to cash provided by operations |  |  |  |
Undistributed earnings of subsidiaries |  |  | (1,657) | (4,759)
Undistributed earnings of equity securities without readily determinable fair values |  |  | (143) | 33
Share-based payment awards |  |  | 449 | 502
Depreciation |  |  | 98 | 116
Changes in operating assets and liabilities which used cash |  |  |  |
Other assets |  |  | 1,080 | 19
Accrued interest and other liabilities |  |  | (597) | (1,659)
Net cash provided by (used in) operating activities |  |  | 9,721 | 4,768
Investing activities |  |  |  |
Maturities, calls, principal payments, and sales of AFS securities |  |  | 0 | 249
Sales (purchases) of premises and equipment |  |  | (79) | (86)
Net cash provided by (used in) investing activities |  |  | (79) | 163
Financing activities |  |  |  |
Cash dividends paid on common stock |  |  | (6,126) | (5,950)
Proceeds from the issuance of common stock |  |  | 5,093 | 4,999
Common stock repurchased |  |  | (6,212) | (4,005)
Common stock purchased for deferred compensation obligations |  |  | (290) | (327)
Net cash provided by (used in) financing activities |  |  | (7,535) | (5,283)
Increase (decrease) in cash and cash equivalents |  |  | 2,107 | (352)
Cash and cash equivalents at beginning of period |  |  | 185 | 1,297
Cash and cash equivalents at end of period | $ 2,292 | $ 945 | $ 2,292 | $ 945

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