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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) | 4,374 |  |  | 3,136 | 1,238
Issuance of common stock | 1,770 | $ 1,770 |  |  |
Issuance of common stock, shares |  | 63,866 |  |  |
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations | 0 | $ 168 | (168) |  |
Share based payment awards under equity compensation plan | 178 |  | 178 |  |
Common stock purchased for deferred compensation obligations | (123) | (123) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan | (1,169) | $ (1,169) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan, shares |  | (41,815) |  |  |
Cash dividends | (1,953) |  |  | (1,953) |
Ending balances at Mar. 31, 2017 | 190,976 | $ 140,171 | 5,048 | 47,297 | (1,540)
Ending balances, shares at Mar. 31, 2017 |  | 7,843,120 |  |  |
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) | $ (2,815) |  |  | 3,462 | (6,277)
Issuance of common stock | 1,616 | $ 1,616 |  |  |
Issuance of common stock, shares |  | 59,560 |  |  |
Common stock transferred from the Rabbi Trust to satisfy deferred compensation obligations | 0 | $ 146 | (146) |  |
Share based payment awards under equity compensation plan | 146 |  | 146 |  |
Common stock purchased for deferred compensation obligations | (101) | (101) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan | (620) | $ (620) |  |  |
Common stock repurchased pursuant to publicly announced repurchase plan, shares |  | (22,512) |  |  |
Cash dividends | (2,041) |  |  | (2,041) |
Ending balances at Mar. 31, 2018 | $ 191,090 | $ 141,318 | $ 5,502 | 52,926 | (8,656)
Ending balances, shares at Mar. 31, 2018 | 7,894,341 | 7,894,341 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 0 |  |  | $ (223) | $ 223

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