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Consolidated Statements Of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-In Capital [Member] | Accumulated Deficit [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2016 | $ 3 | $ 483,925 | $ (309,717) | $ (12,398) | $ (1,005) | $ 160,808
Balance, shares at Dec. 31, 2016 | 32,888 |  |  | (2,872) |  |
Net income (loss) |  |  | (673) |  |  | (673)
Other comprehensive income (loss) |  |  |  |  | 1,504 | 1,504
Purchase of treasury stock, value |  |  |  | $ (17) |  | (17)
Purchase of treasury stock, shares |  |  |  | (3) |  |
Stock compensation expense |  |  |  |  |  | 1,181
Issuance of common stock under stock incentive plans, net, value |  | 1,360 |  |  |  | 1,360
Issuance of common stock under stock incentive plans, net, shares | 29 |  |  |  |  |
Balance at Dec. 31, 2017 | $ 3 | 485,285 | (310,390) | $ (12,415) | 499 | 162,982
Balance, shares at Dec. 31, 2017 | 32,917 |  |  | (2,875) |  |
Net income (loss) |  |  | 7,301 |  |  | 7,301
Other comprehensive income (loss) |  |  |  |  | (22) | (22)
Cash dividends |  |  | (1,488) |  |  | (1,488)
Purchase of treasury stock, value |  |  |  | $ (5,687) |  | (5,687)
Purchase of treasury stock, shares |  |  |  | (621) |  |
Stock compensation expense |  | 2,652 |  |  |  | 2,652
Proceeds from exercise of options |  | 467 |  |  |  | 467
Proceeds from exercise of options, shares | 327 |  |  |  |  |
Balance at Dec. 31, 2018 | $ 3 | 488,404 | (304,577) | $ (18,102) | 477 | 166,205
Balance, shares at Dec. 31, 2018 | 33,244 |  |  | (3,496) |  |
Net income (loss) |  |  | 18,972 |  |  | 18,972
Other comprehensive income (loss) |  |  |  |  | (780) | (780)
Cash dividends |  |  | (2,987) |  |  | (2,987)
Purchase of treasury stock, value |  |  |  | $ (4,167) |  | (4,167)
Purchase of treasury stock, shares |  |  |  | (359) |  |
Stock compensation expense |  | 2,949 |  |  |  | 2,949
Proceeds from exercise of options |  | 1,000 |  |  |  | 1,000
Proceeds from exercise of options, shares | 371 |  |  |  |  |
Balance at Dec. 31, 2019 | $ 3 | $ 492,353 | $ (288,592) | $ (22,269) | $ (303) | $ 181,192
Balance, shares at Dec. 31, 2019 | 33,615 |  |  | (3,855) |  |

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