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Interim Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common Stock | Shares to be Issued for Deferred Compensation Obligations | Retained Earnings | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | ---
Beginning balances at Dec. 31, 2016 | $ 187,899 | $ 139,525 | $ 5,038 | $ 46,114 | $ (2,778)
Beginning balances, shares at Dec. 31, 2016 |  | 7,821,069 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Comprehensive income (loss) | 13,345 |  |  | 10,516 | 2,829
Issuance of common stock | 4,999 | $ 4,999 |  |  |
Issuance of common stock, shares |  | 178,712 |  |  |
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations | 0 | $ 176 | (176) |  |
Share based payment awards under equity compensation plan | 502 |  | 502 |  |
Common stock purchased for deferred compensation obligations | (327) | (327) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan | (4,005) | $ (4,005) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan, shares |  | (143,117) |  |  |
Cash dividends | (5,950) |  |  | (5,950) |
Ending balances at Sep. 30, 2017 | 196,463 | $ 140,368 | 5,364 | 50,680 | 51
Ending balances, shares at Sep. 30, 2017 |  | 7,856,664 |  |  |
Beginning balances at Dec. 31, 2017 | $ 194,905 | $ 140,277 | 5,502 | 51,728 | (2,602)
Beginning balances, shares at Dec. 31, 2017 | 7,857,293 | 7,857,293 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Comprehensive income (loss) | $ 717 |  |  | 10,491 | (9,774)
Issuance of common stock | 5,093 | $ 5,093 |  |  |
Issuance of common stock, shares |  | 189,074 |  |  |
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations | 0 | $ 612 | (612) |  |
Share based payment awards under equity compensation plan | 449 |  | 449 |  |
Common stock purchased for deferred compensation obligations | (290) | (290) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan | (6,212) | $ (6,212) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan, shares |  | (215,427) |  |  |
Cash dividends | (6,126) |  |  | (6,126) |
Ending balances at Sep. 30, 2018 | $ 188,536 | $ 139,480 | $ 5,339 | 55,870 | (12,153)
Ending balances, shares at Sep. 30, 2018 | 7,830,940 | 7,830,940 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 0 |  |  | $ (223) | $ 223

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