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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Common Shares [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2015 | $ 290,311 | $ 1,866 | $ 232,126 | $ 62,551 | $ (6,232)
Balance, Shares at Dec. 31, 2015 |  | 18,659,696 |  |  |
Cumulative effect adjustment from adoption | ASU 2016-09 [Member] | 604 |  | 2,032 | (1,428) |
Net income | 3,056 |  |  | 3,056 |
Other comprehensive income (loss), net of tax | (348) |  |  |  | (348)
Share-based compensation | 15,966 |  | 15,966 |  |
Common shares issued | 17,313 | $ 71 | 17,242 |  |
Common shares issued, Shares |  | 713,140 |  |  |
Retirement of repurchased common stock | $ (63,425) | $ (154) | (63,271) |  |
Retirement of repurchased common stock, Shares | (1,544,681) | (1,544,681) |  |  |
Ending Balance at Dec. 31, 2016 | $ 263,477 | $ 1,783 | 204,095 | 64,179 | (6,580)
Balance, Shares at Dec. 31, 2016 |  | 17,828,155 |  |  |
Net income | 6,223 |  |  | 6,223 |
Other comprehensive income (loss), net of tax | 10,367 |  |  |  | 10,367
Share-based compensation | 12,557 |  | 12,557 |  |
Common shares issued | 3,984 | $ 45 | 3,939 |  |
Common shares issued, Shares |  | 450,678 |  |  |
Ending Balance at Dec. 31, 2017 | $ 296,608 | $ 1,828 | 220,591 | 70,402 | 3,787
Balance, Shares at Dec. 31, 2017 | 18,278,833 | 18,278,833 |  |  |
Cumulative effect adjustment from adoption | ASU 2016-16 [Member] | $ (1,900) |  |  |  |
Ending Balance (ASU 2014-09 [Member]) at Jan. 01, 2018 | 301,369 |  |  |  |
Beginning Balance at Dec. 31, 2017 | $ 296,608 | $ 1,828 | 220,591 | 70,402 | 3,787
Balance, Shares at Dec. 31, 2017 | 18,278,833 | 18,278,833 |  |  |
Cumulative effect adjustment from adoption | ASU 2014-09 [Member] | $ 4,761 |  |  | 4,761 |
Cumulative effect adjustment from adoption | ASU 2016-16 [Member] | (1,896) |  |  | (1,896) |
Net income | 13,811 |  |  | 13,811 |
Other comprehensive income (loss), net of tax | (491) |  |  |  | (491)
Share-based compensation | 18,930 |  | 18,930 |  |
Common shares issued | 3,674 | $ 30 | 3,644 |  |
Common shares issued, Shares |  | 300,855 |  |  |
Ending Balance at Dec. 31, 2018 | $ 335,397 | $ 1,858 | $ 243,165 | $ 87,078 | $ 3,296
Balance, Shares at Dec. 31, 2018 | 18,579,688 | 18,579,688 |  |  |

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